By the way, companies that make stuff here and sell them to Europe, like caterpillar and john deere, are doing very well. The falling dollar is not bad for everyone.
We are now at the end of a bubble, and the situation now is analogous to the end of the internet bubble in 2000. None of the people you listed are to blame for this, and George Bush is not to blame for this either. This situation was caused by two things happening simultaneously:
A belief held by many that housing prices will continue to rise indefinately.
China and India rapidly industrializing, and therefore using more oil, making oil more expensive for everybody.