I get what you mean, but my point was more about the fact that they're not mentally healthy places and I have a strong suspicion they're filled with people who have been traumatized or forced into hating the other gender, often for good reasons. Lemmy is completely gender neutral to me, I never know anyone's gender and don't think about it. If you don't have a good pre-existing condition/reason to be there, then you, a mentally healthy person, will start developing hate and similarly traumatized mentality towards the other gender.
It's like not knowing what Islam is, and suddenly joining IS-hating subreddit and then revolving your islam knowledge around isis. See the problem?
Atheism is not a religion, therefore you get no rights or tax exemptions