[who knows what evil?]

...wants collective bargaining for homeowners that owe money to the big banks.

You owe the big bad bank money? Then pay your bill.

[HiTech RedNeck]

The trick comes if, in a feat akin to herding cats, all the debtors defaulted in unison. The banks would be overwhelmed. Of course such a course of action could not be recommended in good conscience.