Would you go defend your sons teacher?

I picked my son up early from school and was in the office and I heard and angry parent yelling. Some meeting was going on with a teacher and parent and principal. I just here the mom yelling about this teacher talking about homosexuality and the teacher saying she wasn't. She was stopping bullying. In the car my son told me that situation kind of involved him a little and that was is Geometry teacher. I asked how and he told me what happened. My son IS gay and he gets picked on sometimes for it. He had his nails painted black(which has nothing even to do with being gay. Its a goth/emo thing) and some boys were mocking him in class and they were pretending to be gay and acting extremely feminine to mock my son and his teacher yelled at them to stand up and tell the class what they're doing. A bit said he was just joking and the teacher said "Is the joke gay is funny? I don't get the joke. Please stand up and tell the whole class how it's so funny to be gay." They wouldn't and she said "Ok. Then pay attention and if I catch you doing that again, detention." I guess one of the boys told his mom the teacher was talking about homosexuality and that mom was up there tearing into that teacher. I kind of feel like I should not only thank the teacher but reach out to that principal in her defense because she defended my child. But I also know that technically the whole meeting was between her and that kids mom. Idk if it would be overstepping.