Why are gay men so mean to each other?

It's probably all in my head but I'm at Orientation Day. I'm attending an arts school (university) and the people here are vey "edgy" and "alternative". Nothing like the people I used to hang out with in highschool. What didn't surprised me the most is the amount of gay men that i would see. Of course i knew that I would see an umpteen amount of gay men in an Art's school, but the sheer amount was surprising, and for me, it was refreshing. I thought to myself, i can make friends with someone who has one less reason reason to discriminate against me! I'm being as charismatic and friendly as possible only to be greeted with bad attitudes and aloof stares. Please don't tell me it's all in my head, because it isn't. I've met a few friendly gay faces here and there, but most of them seemed so... competitive.it's the only word I can think of to describe the way this environment feels. Like it's some sort of competition, and I don't know why. It's ridiculous.And another general concern of mine is why gay men are so mean to each other in general. It's as if we need to be tearing each other down all the time. "Reading" and "dragging" and "throwing shade". I joined a discord chat for 'gaymers' and all they could do was drag each other and throw shade at each other! I understand little jokes, but sheesh! It felt so toxic to be in any of the voice chats that I just left! I'm almost positive I can count on one hand the genuine, relaxed completely platonic interactions I've have with a gay man!