Personally, I have no issues with things like summer homes, or having a second property you rent out for some money on the side.

The first is typically somewhere that having property is purely a luxury rather than a neccessity, so as long as it's not being done in another large city or something, it's not that much of a big deal. Especially so if the government isn't on the hook for utilities.

For the latter, as long as the number of properties being rent out, and that the renting is done properly, it's not a big deal either. The government already has regulations on rentals anyways, though I do wonder how well they're enforced. Either way, while I do agree that excesses here is an issue, one or two properties utilized like this isn't a problem, even if thousands of people do it in a single city.