The people that create the syllabus and push these sorts of social-cultural programs through the education system. A while back they had a big movement to encourage homosexuality, they even created a website, with graphics encouraging little children to become homosexuals as its completely normal and at the same time telling them its all about equality and freedom to be a homosexual.
Do you have any evidence to back this up?
Education is supposed to enlighten and spark curiosity, not enforce an agenda or idea. If the subject of homosexuality is going to be more apparent in education it will be to inform and enlighten the generation that is what's happening in society.
The only comparison I could draw from my schooldays was a analysis of different religions, whereby not one was forced upon me as being "right", "correct" "moral" or whatever. It was a insight into what's happening in the world and we were all left to draw our own conclusions.
It sounds like you're expecting teachers to scream at kids "GO BE GAY, IT'S FINE, GO ON". That simply won't be the case.
Homosexuality isn't new and if newer generations of kids will grow up to understand how our society is evolving, excellent. Leave them to draw their own conclusions.