You might argue that many people don't actually own their home since they still have a large mortgage, but this just makes the situation worse: now you have a mortgage that's more than your house is worth.
when housing markets collapse, the economy goes down and people loose jobs. when you dont have a job, you cant buy a house. one of the many reasons why housing market collapses are not refered to as affordable housing.
don't need to look further than 2007-2009 to see an example of this.
You can see here that home ownership did not go up: https://en.wikipedia.org/wiki/Home-ownership_in_the_United_S...
I believe the causality goes the other way around. Economy goes down, people lose jobs and then the housing market collapses. It's funny to keep a bubble inflated to protect people from their mistakes.
People always get overleveraged (encouraged by the government and the banking sector) to buy real estate when the economy is doing fine, what else could one expect to happen when things go south?