Good points by ypu and cowadle. Another dynamic that was in play at that time was the deductibility of Mortgage interest, car loan interest and credit card interest. Even a jumbo mortgage now does not give a family the ability to itemize and save more in taxes. As you point out the banks have even more incentive to foreclose upon 2% mortgages assuming the property values don't drop too precipitously.Same things happened in late '70s - mid '80s.
House mortgages were 9-10%. Car loans were 20% (go buy that $90k F250 and $6 diesel).
We bought our house in '78, @5.2%. 3 months later, loans were pushing 9%.
The house across from us sold for $48k, ours was $42k.
2 years later, same house sold for $65k.
18 months, sold for $84k.
A year later, they walked.
Sat empty, almost 3 years. Bank sold it for $35k
We had been in our house 8 years, it was worth less than we bought it.
Shifted happens. Timing is everything
A LOT of people will be hurt by the Pedo stupidity.