The revelations that Obama's paster is a rabidly anti-American who clearly hates this country on their own wouldn't be that damaging.
But when combined with Obama's wife's statements that she has never been proud of this country until recently and Obama's own issues with the pledge of allegiance, flag pin wearing, etc. you begin to see a pattern.
Personally, I don't think the man likes the United States at all. I think he is like a significant percentage of the Democratic left that thinks the US is fundamentally flawed and wants to "Change" it to reflect the values they think it should have.