The housing bubble was enabled by the US Government in the 'affordable housing' scam that forced banks to refuse to 'redline' those who could not afford homes, making them write bad loans that were then 'guaranteed' with taxpayer money. If the government had not made the edict that 'everyone should have their own home' under Carter, then expanded it under Clinton (thanks Bawney Fwank, Chris Dudd and Franklin Raines among others); we would not have had speculators going after the easy money created by taxpayer bailouts that should have NEVER existed. A false market was created on false fundamentals that could not be maintained forever caused the crash. They promoted the moral hazard and we all got burned, except those in government (Chris "Countrywide" Dodd, Franklin '50 million investment package' Raines) who knew what they were really doing.
You can't separate the actions of big government and big business (Wall Street) when assessing blame for bubbles and bailouts. Trying to lay the majority of blame on the CRA, as opposed to Bush's "Ownership Society, raises troubling some troubling questions:
Why did 345 mortgage brokers who were not covered by CRA legislation implode while the vast majority of CRA covered banks remained healthy?
Why weren't the biggest foreclosure areas in Harlem, Chicago's South side, LA's south-central or Philly's inner city instead of non-CRA regions like suburban southern California, Las Vegas, Arizona and South Florida?
Elected Republicans, Democrats and Goldman Sachs bear the blame for the collapse of housing and the bailout that followed.
Public unions and other middle class workers don't.
CRA Thought Experiment
It's called using government to enable the moral hazard. If the option was not created by wrongheaded legislation, you would never have had the bubble.
If not for the Community Reinvestment Act, there would never have been the taxpayer guarantees on bad loan risks. If there was not the removal of banking rules preventing many shady types of investment and the breaking up of mortgages to multiple owners, and placing 'side bets' on them we wouldn't have that problem either.
The banks all knew they were risky investments but government too away the risks by guaranteeing the profit with money they didn't have but would have to tax to get. People acted like people after that. The original fault IS government. After that, you have the piling on by thousands who thought to make a fast buck and be opportunistic profiteers.
The banks couldn't pass up guaranteed profits, it was just too tempting.
The loan agent weren't going to pass up the big commissions either.
The home buyers weren't going to pass up the awesome deals either.
Why? Because all expected Uncle Sugar to cover their bets come rain or shine. Yes the private sector is to blame for falling for the temptation, but sorry, the situation was created by unintended consequences from bad legislation.