The vituperation was a reference to some of the interviews I've seen conducted with preachers and members of the religious right, rather than you Faith.
But on your substantive point, you say that this point changes a law that affects what we're allowed to think and do. Well, first off, there is clearly no law which prevents people thinking what they want to think - that's hyperbole and again, undermines your position. Let's stick to what is being talked about, which is whether we should prevent people discriminating against other folks on the basis of their sexuality - a law preventing people doing things, not thinking them.
Secondly, we have had (in my country and yours) for quite a number of years now, legislation which prevents discrimination on the grounds of gender. It was hard fought, but the legislation exists - it's actually there, making it illegal for Christians to refuse to appoint women to positions of authority in their businesses, on the grounds of their gender. If you want to argue against laws which would prevent discrimination on the grounds of sexuality, then you have to argue for the repeal of laws which prevent discrimination on the grounds of gender, or else your position is inconsistent and not credible.
And it's not just gender - going back to one of my earlier points, you should also be protesting outside MacDonalds, for super sizing their meals and contributing to gluttony.
But that doesn't happen - we don't see any of that from religious fundamentalism - we just see the protests centering around people's sexuality.
Now you could argue that this is simply a topical issue, but that puts the cart before the horse. What makes the fight for equality of sexuality a topical issue is the current resistance to it, and that resistance largely comes from fundamentalist religion. And their lack of resistance to other biblically-frowned-upon equality, and secular morality, suggests that their resistance to equality of sexuality, stems more from bigotry than defending a faith which is not actually under attack.
Could there be any greater conceit, than for someone to believe that the universe has to be simple enough for them to be able to understand it ?