Aww, thanks YWIW!
In all honesty, we are all to blame. Sure the politicians weren't regulating, but no one forced people into sub-prime mortgages.
And no one seemed to care when the market was hot that most of the banks were begging to give out interest only loans.
Point is, as you say, assigning blame is a waste of time. There is a compromise there and our elected officials need to find it. Now.
....but the world goes 'round