It's fair enough to object to generalisations. However I'd like to point out that I wasn't ragging on just anyone who says they're non-binary or has mental issues or such, but specifically on people who are wanky, rude, etc. and hide behind their identity/issues when they meet opposition. I definitely concede that that then devolved into bitching about general SJ jargon saturation, and obviously I understand why that would upset someone who is invested in those matters. Friends and acquaintances are free to let it slide, talk to me about it, stop associating with me; it's all up to the individual people. I trust everyone to decide for themselves.

Again, it's NOT okay (for me or anyone) to rag on everyone who shares a trait with an offensive person (besides the traits that make them offensive, as in "everyone who flings out insults without provocation..." etc). But I have no tolerance for people who do act in such a way, I don't care if they're part of a marginalised group. People who go around spewing aggressive rubbish unprovokedly can't expect to be treated like tender little flowers, especially since they tarnish the reputation of the entire larger group they vocally declare themselves part of.

This is where our main disagreement is, I think. You say any offensiveness from "norm"-divergent people doesn't do any harm, doesn't matter and should just be disregarded, but frankly I can't respect a person who doesn't show others basic decency. This obviously goes both ways; a cis-gendered or mentally healthy person who bullies (or does worse to) a divergent person is condemnable. And again, this is on an INDIVIDUAL basis. I'm not sure if this is on your radar at this point, but I care about how transgendered people and mentally ill people and others who don't fit the current "norm" are treated. I'm not disregarding the very real plight and struggle they deal with simply because some kids are jerks on the internet.

All I expect from people, as individuals, is basic decency. If someone doesn't offer others that I can't respect them. THAT'S what I can't change my mind on. Will I disrespect the ten douchebag trans kids / kids who blow up in someone's face for not tagging something innocuous for them? On a personality basis, absolutely. Will I disrespect their trans identity / their anxiety disorder / whatever their deal is? No, not unless they are very clearly only using it to gather in order to get a free pass for their behaviour. Will I disrespect the millions of trans people and people with anxiety disorder and others who are decent people and just want to be treated with the same respect as the ones who fit the current "norm"? Of course not!

TL;DR

1) It's not okay to take select examples of rude behaviour and pin it on entire groups. I agree.
2) It's not okay to be a complete asshole for no reason, no matter if you're privileged or marginalised. I think we disagree on this one.