Wouldn't they still owe interest to the banks on the money they borrowed, as well as the money they borrowed? I mean if all the money I make goes to the bank to pay off my mortgage my solution is not quitting my job, even though life is not very good under that situation.
The analogy has a lot of problems.
Imagine you got a loan to buy a bunch of laundry machines to run a laundromat. But your laundromat earns $8,000 a month, and the loan payment is $10,000.
You can decide to sink $2,000 of your personal money into the laundromat every month, or you can give up.