Not sure what your point is. My point is that the rules around rent exist to protect current residents of a city. Just like rules about immigration exist to protect current residents of a country.

If you think one of them is immoral and unfair, but the other isn't, you're the one who needs to square that cognitive dissonance - not me.

It sounds like you generally think economics should trump the welfare of existing residents. That's certainly a view, but a logical consequence of it is wide-open borders.