I've heard this from gays myself, it goes something like this..."you Christians sure are preoccupied with homosexuals...what about wife beaters, or child molesters or rapists, shouldn't you be more worried about them?" Oh we're worried about that stuff too. But gay activists are increasingly and often militantly creating or trying to create new laws that affect the public at large, therefore, everyone's opinion matters when it affects everyone. Homosexuality was an issue 25 years ago but it wasn't front and center of the cultural debate as it is now. That's why Christians are stepping up to voice their opinions in a reciprocal fashion. Hey, this affects us too and like it or not, our opinions matter and should be heard just like anyone elses.
Better said here from Stand to Reason.