There is very little difference between Obama and Romney. Voting for Obama won't bring about the apocalypse and voting for Romney won't make much difference either. Obama will be blocked at every turn if he's in and Romney will suffer the same. Partisanship is at an all time high and that's not going to change at all.
By the way, I saw a comment earlier with a "what would Jesus do" question in there. Don't do that. If you think Jesus was a Republican you obviously don't read the bible. There is no "war against Christianity" any more then there is a conservative "war against women". Jesus wasn't looking for soldiers, he was looking for ways to bring people together, not set them apart.