I rarely vote for candidates as I will not vote for the lesser of two evils, and with very few exceptions 'evil' is all that's offered, regardless of party. As Penn Jillette would say, "Voting for the lesser of two evils is still voting for evil". So in general I just vote on legislation and omit the candidates. I know of the Jillette quote because I'm staunchly libertarian (not the party, just philosophically). So when I vote on legislation (or candidates in rare instances) it's always with libertarian ideals in mind. Pretty progressive of me, huh HeloDude? Yeah, I'd bone Hilary Clinton real good if given the chance. I love her for her mind. You've certainly got my number.
Anyway, I fully support the right of anybody to practice any religion they like, as long as it doesn't affect me. That is not to say that I don't simultaneously wish that they might abandon their fairy tales in favor of logic and reason because it makes for a better existence for everyone. And especially that they would stop brainwashing their kids (strategically at ages where they can't think critically for themselves). Of course, religion would cease to exist rapidly if they didn't do the churches bidding in brainwashing their children, as almost nobody decides that religion is the answer as an adult for obvious reasons.
When 70% of the population bases their actions on delusions it's impossible that that doesn't have an impact on everybody else...thus simply not following religion doesn't exactly solve the problem as you state. So, I'm happy to see the pace of erosion of the institution increasing.