I completely agree. However there is a difference between teaching the concept of homosexuality and training children to regard it as universally accepted behavior. I have nothing against teaching my kids about the truths of life. But when schools teach against our religious beliefs by glorifying (for lack of a better word) homosexual practices as perfectly normal behavior, I take issue.
What do you mean by accepted? I think any public school has to teach that it's wrong to vilify any of it's students for who they are, be it along gender, race, orientation, etc. It would be as wrong to encourage the behavior, but acceptance of gay students (and gay teachers) is a Constitutional requirement, setting aside the obvious moral need.
No school I've been to has 'glorified' homosexuality. They also don't glorify heterosexuality. They teach that both happen, and it's wrong to exclude/tease/hurt/bully students because of that orientation. Glorifying would be them saying that it's better, but they don't. They just put them on an equal standing (which, I know, can be objectionable). I'd like it to the same way that they don't teach that blond hair is better than brown hair, or blue eyes better than brown eyes. Students don't have control over those (well, hair...), so schools need to make it so that it's not treated as something that matters. Same for skin color, gender, what side of the tracks you grew up on.
I'm sure your children will have gay classmates. I did. I have gay friends, have had gay teachers, and a gay roommate for a bit at college. Your value system says that their romantic relationships are on a lower level than that of heterosexual relationships, but the school can't teach that. They can teach acceptance, and they have to. Otherwise those gay students will end up getting picked on. They probably will anyway. But the school has to do what it can.
Don't misread me. I'm not saying that it should be removed from schools or that it should be suppressed in any way. But when it is taught as acceptable and normal but prayer is looked down on... there's something wrong there.
It's not looked down upon, it's just not the function of school to be a place for prayer. Schools are a place for learning, not prayer.
I'm waiting for a day when it's P.C. to be a Christian. I'm sure I'm in for a long wait.
Just as I wait for a day when it's fine to run for the presidency openly as an Atheist.