That's an overly simplified explanation of a pretty complex clusterfuck. Chicken or the egg? US house prices peaked in 2006 and slowly began to fall thereafter. At the time, the vast majority of mortgages were sub-prime, thus adjustable rate mortgages. These were made viable due to the massive amounts of foreign capital being injected into the American housing market as well as speculative analysis. As soon as house prices plateaued and then started to decline interest rates went up due to a.) lowered equity in the prospective purchase and, b.) the first wave of mortgage defaults when people realized that they owed more they had in equity. Variable rate mortgages reset to the higher rates and defaults snowballed from there. Financial institutions had a ton of capital tied up in mortgage backed securities at the time, which are a great bet...on paper. The process of slicing and dicing good and bad loans, while somewhat controversial, really isn't immoral or unethical at all. It's merely hedging the bad against the good. But, when shit went south, it went south hard and all of a sudden the liability of the bad loans outweighs the profitability of the good loans. Financial institutions and bonding companies all of a sudden find themselves in a situation where cash flows dry up, massive debt burdens, and they could no longer afford to absorb the losses from bad loans and the decreased value of mortgage backed security packages. That's when the shitstorm got noticed.
I have no problem with anyone realizing that they're never going to recoup their losses and walking away from the whole thing. A lot of financially responsible people got caught up in a very bad thing. BUT, for the most part, they got caught up in that because a lot of retards decided they wanted and needed to own a house when they had no business doing so. No one put a gun to anybody's head and told them they needed to go out and buy real estate with a 5% or even 10% down payment. Sure, they COULD, but that doesn't mean it's a great idea. Especially when 10% usually still puts you in a high risk interest bracket. And not a single person out there should have been thinking it was a great idea to get approved for a mortgage higher than the value of the property. Sure, it was possible, but that doesn't mean you have to do it. Banks and financial institutions may have been encouraging certain practices and signing off on risky loans, but, much like every other player in the game, they're just looking out for their own best interest just as those defaulting on their mortgages are. None of this was really a secret at the time.
Like I said, I have no problem with anyone walking away from a losing deal. That's the nature of the game and a very common exercise in logic that every first year philosophy or economics student learns. But, apart from some rare cases of predatory lending, most of these people aren't victims in any way. They got involved in the real estate game on a speculative analysis of the situation which was based upon the assumption that prices would continue to rise. In doing so, they accepted that there was risks involved, and if they want to claim that they didn't, well then, that's what worries me.