If you go say something is gay to portray it as uncool, unwanted or make fun of people have a cry, school has changed so you need be careful with calling stuff gay otherwise some parents or teachers will have cry and want to punish you
It’s because it’s what they believe in and want to defend it wether it be religious, political or sexuality from any form of attack which is fair enough.
I don’t like gay people as I don’t like a lot of traits people have such being stupid, criminals, junkies or behavior that I don’t agree with yet I don’t go out of my way to attack or publicly ridicule them, I just let them be and don’t deal with them and carry on with what I need to.