outandup,
"Gays do your business, stay away from my kid and stay out of my
face."
Unfortunately for you, our constitution says all men are created equal. Gays have as much right to express themselves as you do.
Whether your kid would turn out gay or not has nothing to do with him knowing or talking to gay people. Get up to date, it was like '99 or 2000 or something like that when the updated info on DNA mapping came out in Time. Homosexuality is in the genes, it's not like religion you can't convert, either you are or you aren't.