Personally I don't care if you call it a fact or not. Believe what you (general you) want to govern your own life. Where we (as a country) need to draw the line is allowing people to vote/enact laws that take away rights from people based on their beliefs/personal facts.
There's a giant difference between someone who says they think gay people (or anyone different from them) are sinners (absolutely nothing legally wrong with thinking this) and people who vote to take away civil rights of minorities (I will speak out and vote against this till the end).
Taking away civil rights should only be done when there is a clear benefit to society as a whole (imprisioning felons, for instance) and has nothing to do with freedom of speech, which is, of course, protected.
Kara