So let's just give up, right?
Not at all. We don't give up. But it's common knowledge that Sarah Palin has been singled out by the Left for demonization, unfortunately with some success. This must be overcome before she can be a viable candidate. It won't be easy.
What, you think they won't demonize anyone else just as much once they become a threat? Better to ignore what they're doing (and don't let them choose our candidate for us) and stick with someone whom they've already wasted all their ammo on.