All I'm arguing is that I don't want a teacher teaching my kid about homosexuality. I never said I don't respect homosexuality, I never said I don't have gay friends, and I never said I was anti-gay marriage.
Do healthy atheists teach their kids that religion is evil and every theist is a sub-class human? Absolutely not. They just don't want a teacher teaching their kid about it.
I can teach my future child tolerance just fine; I can introduce them to my gay friends and let the child see they're every bit as full of soulful humanity as any other human. I simply don't want a public school teacher educating my child about complex adult things in exactly the same way an atheist will not want their child being taught all about Christianity in their classroom.