Or they don't have the trendiest clothes or shoes.
Or they wear glasses.
Point is, kids bully for many reasons, and for no reason at all. Anti bullying, in general, is all that is needed. When we went to school, there was a code of conduct for the school. “We do not believe in the bullying or booing of anyone” was one on the list.
Exactly we don’t need identity politics we just need teachers who who don’t tolerate bullying in general. Also we I believe it is inappropriate to have kids identifying themselves as gay. Modesty is a virtue that should apply to everyone.