theyd figure out some way to fuck it up like it would immediately get turned down by some unelected judge or they deliberately sabotage their own proposal by tying it to mandatory sterilization of indigenous people or some shit

i would just assume they were lying since a good 90% of elected democrats are members of the bourgeois class, and they own financial assets like stocks, and it is therefore in their class interests to make sure working class debt to corporations is not attacked. Such a promise to their voters would merely be bait. They would forget all such promises after getting elected, and would blame circumstances, procedure and/or opposition for not fulfilling their promises.