I think the end point is that she is frighteningly stupid. If she does not know such basic things, how would she ever be able to make an informed policy decision? She wouldn't, she would make a policy decision, but I fully lack confidence that it would be informed.
And to me, this is not about Sarah Palin, it is simply the thought that someone who knows so little about anything can come so close to being one of the most powerful government officials in the US. It probalby has happened before, and will happen again.
... If we don't learn from history, we are doomed to repeat it.