As an example when I was active in housing in Chicago one of the organizations that was with us on the left was a developer of affordable housing: https://www.bickerdike.org/
Several of the activist actually worked for this developer.
Real leftist housing rights supporters are not against developers. They are against for-profit, private equity, land banking speculators, and yeah nimby homeowners. In general we hated the Oak Park type nimby liberal more than we hated the right to be honest.
“leftist housing rights supporters are not against developers.”
They certainly are in my neighborhood.
https://www.ourneighborhoodvoices.com/48-hills-cost-of-growt...
The “private developer risk” the article derides is an enforceable approval timeline that lets private developers have bounded risk. Apparently that’s a bridge too far.
In a market system, Creating a system that is "against for profit" housing developers very predictively restricts housing supply & drives up the cost of living for everyone.