that's definitely the trend. In a sense, the whole "slippery slope" they have cried about for years does exist to an extent. the more out we are, the more of us are out.
I think the "boredom" bit is a good way to look at it, like moralizing about alcohol or gambling or, i dunno, short skirts? At some point you just see you are not going to win.
in fact, the head of Focus on the Family was quoted in an interview a couple of weeks ago acknowledging "We've probably lost on gay marriage"
So yeah, the trend is definitely there, and will continue. and if you live in a big city where the thing is further advanced then by ALL means fight for every last scrap of gender expression rights because you have a chance.
i still say that in Memphis or Birmingham or Spartenburg or wherever, you probably will have to take it a step at a time and let that "Boredom effect" kick in a bit more.