Believing that housing should be a natural right may be a reasonable position (even if I disagree that it is practical), but surely you don't believe that everybody is entitled to indefinite ownership of an arbitrarily expensive house. I don't have statistics, so correct me if I'm wrong, but I think most people whose houses are foreclosed end up paying rent for an apartment, rather than living on the street.

opposition to capitalism entails opposition to private property, as the latter only emerges from the former (in the formal sense, where one of the states' primary roles is enforcing property law). i don't claim to have a roadmap for how this would be incorporated in the united states were the social order suddenly upended

I thought we were just talking about whether it's immoral for a bank to foreclose on a home owner... Not sure where all this opposition-to-capitalism stuff came from.