The "God damn America" in that quote wasn't an expression of hating America. Wright has said himself he doesn't hate America. He was talking about the punishment that he felt God might have in mind for America because of the things it was doing to people. Wright felt that America was setting itself up for punishment, and he said so, but he had no desire to not be a part of this country.

Joe Vogler, on the other hand, hated America so much that he wanted his state, Alaska, to not be a part of it any longer. And Palin's husband, and possibly Palin herself, belonged to the organization that was calling for Alaska to secede from the US.

Wright wanted to fix what was wrong with this country. Vogler and, it would appear (for a while, anyway), Todd and Sarah Palin wanted to break the country apart.