Notes:

Alright, context time. I'll keep this short because I don't think many of the details are important.
Mod Sans of the Tumblr blog Spread Love Everybody got into multiple arguments on their main blog. It began when they made a post explaining that yes, biological sex is actually a real thing. Some people objected. Most objections had no sources and amounted to "you're wrong because I said so". So, my friend made this image, about the people rejecting biology.
It just so happened that many of these objectors are fans of Steven Universe. I checked myself.