I read the part of it that was cited as the definitive refutation of all evidence of mental illness driving homelessness and explained why a single self serving source isn’t good enough.

I understand the difference that a few hundred bucks makes to a grad student. I don’t think those are the same people that become homeless in significant numbers and that’s why I’m objecting to the narrative: the person that just needs housing prices a few hundred bucks less is not the person going homeless. Those are different problems.