The government has brought on the housing problem, partly by...

The government has brought on the housing problem, partly by these very low interest rates, which encouraged many people to go way out on a limb. They've brought it on by highly restrictive building policies, which have caused housing prices to skyrocket artificially. And they've brought it on by the Community Reinvestment Act, which presumes that politicians are better able to tell investors where to put their money than the investors themselves are. When you put all that together, you get something like what you have.