Have you lived in one of those rent controlled “paradises”? In Europe, yes, there are sizeable populations living in subsidized housing, and often there are restrictions on rent increases, but new tenants pay way higher prices and have to compete for every available unit with dozens of other potential tenants.
New tenants frantically overbidding each other, while old tenants pay pennies compared to today’s market prices, mmm, what a life.
“it can work” in some way of course. People are surprisingly adaptable to living in semi-dysfunctional environments. But it reality the only thing that truly works is building a lot of housing.