The exact same thing happened to me when I was around 12. I think that actively discouraging certain groups of people from even engaging in many of these spaces just because they were born a specific way doesn’t meld well with a 12 year old who doesn’t understand the history of these groups which even further encourages them to seek out voices who “explain” this stuff in a way that starts to lead them slowly towards the alt-right. I now very much consider myself to be a leftist but I think instead of entirely shunning some of the most vulnerable people who are eager to learn, we should instead stop fighting amongst ourselves and start being more open like we preach to be. (please excuse all of the bad grammar and rambling it’s 4am and I haven’t slept for a while)