Dunno why it bothers some people to hear that Dumbledore is gay. I also don't think it was for publicity's sake. As an author of a very involved series I would imagine that you would get very attatched to characters and make up backstories for them.
"It is literally amazing what little kids can so easily get. When my mom explains why gay people couldn't get married and the way people treated them the little kids were just like, why? They could not accept the fact that anyone could not accept someone"
#and that's what you missed on glee ~~ Actually, if you want to understand current trends you really should check out "glee". They've been promoting LGBTQ rights, opposition to cuts in spending on the arts in public schools, and Jane Lynch's character ran for Congress as a Republican. It'll make you want to VOTE Blue, that's for sure.