On racemixing

http://time.com/3302251/9-ugly-truths-big-data-ok-cupid-book/

http://www.thegrio.com/specials/life-and-style/study-reveals-racial-segregation-in-online-dating.php

http://faculty.chicagobooth.edu/emir.kamenica/documents/racialPreferences.pdf

http://paa2008.princeton.edu/download.aspx?submissionId=80046

http://qz.com/149342/the-uncomfortable-racial-preferences-revealed-by-online-dating/

http://blogs.discovermagazine.com/gnxp/2008/07/why-does-race-matter-for-women/

http://www.as.miami.edu/personal/cklofstad/15_mate_choice_PB.pdf

https://blog.okcupid.com/index.php/race-attraction-2009-2014/

http://evoandproud.blogspot.com/2013/07/white-skin-privilege.html

http://racehist.blogspot.com/2009/04/miscegenation.html?m=1

http://racehist.blogspot.com/2009/04/more-data-on-racial-mixing.html?m=1

http://thealternativehypothesis.org/index.php/2016/10/15/race-mixing/

https://thealternativehypothesis.org/index.php/2016/04/15/race-and-iq-mixed-populations-part-1/

https://thealternativehypothesis.org/index.php/racial-diversity/

https://racehist.blogspot.com/2011/05/black-women-rated-less-physically.html

https://ia801201.us.archive.org/1/items/Raceattractive/d0ddccf003770728d60ee2b471ea34d0555449a629bd42a60a704df20e6b2581.jpg

https://archive.is/LRe05

Whole collection of sources against racemixing and really diversity.