I have absolutely no problem with communities, cities deciding how they allow basic usage of property that affects others. (The typical complaint is that short-term rentals cause a lot of disturbance, new people every week, parties every week, and so on.)

But directly prohibiting short-term rentals just because they take up units is the same short sighted "solution" as prohibiting high-density mixed-use development.

Cities that are growing/booming/trending are attracting people all over the world nowadays. For work, for leisure, for simply living there. I'm not saying just start building high-rises like there's no tomorrow. (Actually I think simple quotas with lottery systems would work best.) Control the influx, not just one symptom.

> land who could be built on, is already built.

Could you describe such an actual example? I can't really think of any place on Earth where we can't easily increase population density by building up.