> there are many "free protections" that are taken for granted at our stage of civilizational development. Should fire departments be privatized? Police? I'd argue that housing security is even more important than those. We bear the costs together so that our lives are collectively better.

But we don't. Everyone who works in the city is paying the costs, while the lucky few who moved in decades ago are the only ones who get the benefit. If everyone got to pay the same level of rent then I'd maybe support it, but there's nothing "collective" about the people who got here quicker protecting themselves while pulling the ladder up behind them.

> Three, your entire framing is kind of bananas. Rent control is neither insurance nor expensive, but a cap on landlord profits. If anything, it's unbounded profiteering of basic necessities that's actually "expensive."

It's got nothing to do with profit; if there are x homes and y>x people who want to live in them, either you give them to the x highest bidders, or you unfairly screw some people over. Rent control is one form of option B (there are others).