Told myself I wasn't gonna' do it but I had to. You know me xD I was thinking too much about it. Here's my two cents:

As far as free speech goes, they are well within their rights to do this as well as anyone else is in their rights to oppose it. The wording needs to be careful when opposing it, however, because instead of saying "they shouldn't be able to do this," if you really do believe in free speech as you are exercising it, the wording should be "I would like them to not do this."

As to why they did it, you know... it's Deadpool. He's meant to be crude, like Kaily said. Just like how South Park does this kind of stuff to Mormons all the time, you gotta' realize that the majority of people think Mormons are pretty weird and they are easy targets for being mocked especially when they get all up in arms about it. The producers of Deadpool and South Park know that Mormons who are following the words of their religion to a T aren't going to be watching these shows anyway, so it causes controversy for all the right reasons. It's a pretty darn good marketing move. I'm willing to bet that most of the Mormons upset about this would never watch Deadpool.

Sure, it's crude, but you gotta' admit... it is a little funny. Just like how I have a Donkey Kong head and his tie on my Jesus statue at home (which I have humbly dubbed Donkey Khrist) (the reason I did this in the first place was to mock my grandparents telling me I needed Jesus and giving me the statue when I got back from my mission, which is similar to how the Deadpool marketing team is mocking Mormons for getting so offended over religious criticism in advance). I'm not trying to be mean to you or anything (I know you know that but just in case) and I know you aren't like a lot of these people that are upset, but it immediately comes across as being fanatic about your religion which is a pretty big reason I typically see that people tend to want to stay away from Mormons in the first place. Coming from an ex-Mormon, even though you believe your religion is the true one and others aren't, just like every other religion, doesn't mean you have to try imposing it on everybody else. Most other religions are pretty open to saying "this is what I believe but if you believe differently that is okay" but I've noticed that Mormons and Muslims tend to be way too dead set. Like I said previously, I know you're not like that, but someone who didn't know you at all would certainly lump you in with the rest. I'm not even saying that's how it should be, but that's how it is. The key to overcoming that is to be like my buddy Dallin, who is still pretty Mormon but is still able to find things like this funny. It's just like bullies... if you give them a negative reaction, that's what they expect and what they want. It puts you in a light that makes you seem exactly like what they think you are: defenseless, reactionary, over-emotional, weak, etc. You play right into their hands which is what the marketing team knew would happen. Controversy is good when the controversy is stirred by the minority because it fuels the majority even more (a good example would be the controversy dynamics between Hillary Clinton and Donald Trump, the former having -bad- controversy and the latter having -good- controversy. I know that sounds a little ridiculous given the types of controversies but when in the context of the minority/majority thing it makes a bit more sense).

At this point in my writing, I just remembered that a theater in Utah that serves alcohol during movies, Brewvies, lost a lawsuit citing Utah law about obscenity and alcohol because they were showing Deadpool while serving drinks. Ryan Reynolds himself said he was disappointed that it had happened. Knowing Utah and how the church controls basically everything, this could have also been a jab at the church for "essentially" having strict alcohol laws that got this theater sued. Here is the link to that story: https://www.sltrib.com/news/2017/09/01/brewvies-wins-judgment-against-utah-in-deadpool-first-amendment-case/

I also didn't know this until just now, but this Deadpool is literally a PG-13 version of Deadpool 2. I don't know if I'm remembering correctly, but there were a lot of religious people that wanted Deadpool to be rated that way so they could watch it without feeling like they were sinning or something. This poster is also probably a jab at that.

Now I'm perusing the exmormon subreddit. Don't laugh!! I'm not saying you should go look at it or anything BUT it can be interesting to see other people's viewpoints on Mormons and the church, their reasons for leaving, etc. A lot of criticism is pretty valid. As I said, I'm not pressuring you at all to go on there because the church/prophet specifically tells people not to (for soooome reason) so don't follow some dude on the internet over your minister xD

People are memeing it up over there like crazy. Tons of paintings are now being replaced with Deadpool. Why? Because seeing people get so, for lack of a better word, "triggered" over things that most people find relatively funny or benign is pretty hilarious. People are even signing the petition with meme accounts, like one that says "Jesus Christ" and has a painting of Deadpool wearing a white robe.

Here's something I found over there that I didn't know previously:
The original artist of this painting was actually a Seventh Day Adventist. He was asked what he thought of his painting being used by a different religion and said "I think that when anybody is introduced to Christ, no matter what their faith is, it is a step in the right direction. When people who don’t know Him at all are introduced to Him and find out what He was like and what He did for them, it satisfies me that my painting was done for somebody’s advantage.” The high road to take with the Deadpool poster is to encourage others to seek Christ, use it as a teaching opportunity. You can bet that a lot of people are going to see this that have never seen the original painting, to which you can show it to them, laugh a bit, but then tell them what's it's about, and they could be interested in learning more and seeking Christ. Seems like that's what the artist intended in the first place.

Now, finally, let's get to the petition itself.
The writer claims that they do not know if the poster was made to directly mock the LDS church, then goes on to say that it is "religious discrimination." While it is probably mocking the church, that is quite assumptive. Either way, it is not discrimination. They are not saying that you cannot watch the movie if you're LDS (in fact, it's probably the other way around considering that a lot of Mormons do not watch R-rated films as it is advised against doing so), thus, there is no discrimination.
The grammar is pretty bad. Nobody will take your petition seriously if you can't use proper grammar, honestly, because most people don't take change.org petitions seriously in the first place.
Another funny thing is that the most liked "reason for signing" is the quote from Bednar about being offended. The quote that was literally meant to say you shouldn't be offended by this being completely misinterpreted. The dude posting that clearly didn't listen to the whole talk or take what was meant to be taken from it.

AND FINALLY

The petition simply calls to change the poster. It has no plan of action... what should they change the poster to? What would still fit the spirit of what the Deadpool movie is trying to accomplish (most likely letting ultra-religious people still see the movie because they can't watch things that have an R rating while simultaneously making fun of them for wanting to watch it in the first place)? You can't make a call to action without a proper plan to be implemented. The reason why this doesn't pop up is almost certainly due to the fact that the person who created the petition doesn't care about Deadpool in the first place and is not willing to provide alternative means because it's something that strictly offends them and they can see no other side to it. They don't know WHY it is the way it is, just that it offends them. This is the crux of this whole situation and it applies to anything even remotely similar. When we take offense to things, it is a very visceral, emotional response. Never do we think of why the person who is offending us may be acting that way. Never do we think of the opposite side of the coin. Because it is emotional, and emotions tend to run deeper than intellectual thought, it can be blinding. This happens all the time. Politics, religion, humor, etc. "Why is somebody telling a joke about 9/11, that's so offensive!" Think about the fact that a lot of people tend to joke about serious topics as a coping mechanism, using laughter as medicine. "Why does he say that homeless people are scum, they are struggling!" Think about his position as a security guard in an area heavily populated with homeless people that he has to deal with on a regular basis because they are stealing, causing disturbances, and committing other illegal activities. "Why did the marketing team of Deadpool mock my religion?" Think about why! With everything I've mentioned above, it's pretty obvious, for multiple reasons. You only have to think about it for a bit. You still may not like it, but thinking of things from a different perspective (logical vs emotional) can really help shape your worldview into something much more balanced, creative, intuitive, and when combining all of these things you can accomplish more and see things for what they truly are. At that point, it doesn't matter if you disagree, but you become a bit more aware of why people act the way they act and use it to your advantage. Do the opposite of what is expected, because people without this knowledge wouldn't. You can be a powerful leader and do great things this way.

Anyway. That took a while to type up. I'm gonna' post this on my wall too so it can reach a bit more of my friends. If you read it all, congrats, you're a superhuman.