Because he can't act.

I don't hate Obama any more or less than I hate Clinton or McCain or Bush. But Obama is the only one with Mudcat minions who are trying sell us something.

I hate corporate puppets in general.

And Tom Hanks qualifies as one of those too, actually.

Or as the Robin Williams joke goes, he saw a homeless actor standing on a street corner in Hollywood, holding a sign that said "will work for Disney".