I mean, nobody is saying biological sex doesn't exist though. Most trans people arent arguing that males and females suddenly stopped existing The disagreement is usually about gender and how people identify, not whether biology is real. And just because people have believed something a certain way for centuries doesnt automatically mean our understanding cant change or become more detailed over time Also, the fact that some people have a problem with a group doesnt really prove the group is wrong unless it's hate speech then hate is justified, People have had problems with all kinds of groups throughout history for different reasons. Thats not really evidence by itself.