Except that the problem starts with the borrower.
How do you figure?
In the tautological sense that without people taking out loans, there can't be a mortgage crisis (because there can't be a mortgage industry)? Or... what? How is it the responsibility of borrowers to anticipate the future affordability and value of their homes, but not the banks making the loans, or the ratings agencies rating the securities, or the investors buying the securities?
I don't see where any homebuyer has any larger responsibility than worrying about the possibility of defaulting on his own loan - nor any means of avoiding the consequences of failing at that. The big, institutional players have systemic responsibilities far beyond that, and are also able to hold the economy hostage to get the public to save them from their failures.
And NO any bilking of the public would have been mainly by brokers, not bankers,
And yet, the public bailed out the bankers to the tune of hundreds of billions of dollars.
How much did we spent bailing out homeowners?
And NO, not that many banks made that many bad loans.
Apparently, enough banks made enough bad loans, to tank the entire global economy.
Conversely, if the problem isn't that banks made too many bad loans, then it also can't be that borrowers took out too many bad loans. If the loans aren't the fundamental problem, then the borrowers can't be the root of the problem.
Only a few failed directly from making bad loans and none so bad that the FDIC didn't cover the losses. The biggest losses were by investment banks and/or investors who bought these mortgage backed securities (Bear Sterns, AIG etc)
So, you are arguing that it is poor risk analysis of said securities - and the corresponding huge derivative market - that were the issue, and not the soundness of the actual first-order home lending. And so you agree that individual homebuyers bear essentially no responsibility for the crisis - it's the fault of ratings agencies and poor regulations.
You are right in that there were systemic errors made though out the mortgage system, mostly in the analysis of risk, but again, NONE of them even come into play without the home buyer starting the process.
Again, I don't see where that is anything but tautological, to the point of distraction. The fact that you can't have a mortgage crisis without first having a mortgage industry, doesn't imply that the individual homebuyers did anything improper, or could have somehow averted the disaster. And let's also note that individual borrowers are about the only players involved that have actually had to sleep in the beds they made.
If the risk is not being priced correctly, and you have a huge derivatives market based on that, then you're going to have a crisis no matter how scrupulous your retail borrowers are. Given that, pointing the finger at individual borrowers is a distraction - and pointing it at government incentives to make loans to minorities (as madanth has done) is
racist distraction.