You know damn well that is not what they are doing.
Not that there is any legitimate reason even to be telling young children anything about sick sexual perversions at all, but grooming them toward these perversions, which is what is really happening, is something that absolutely is not acceptable.
Actually, there's a very legitimate reason, to teach them not to be the kind of hateful bigot you are.
Seriously, dude, you seem to spend an awful lot of time hating gay people, and I'm really not sure what for. It's not like they have any effect on your life.