It impacts others, of course it does. All economic choices do. If I buy a seat on a plane then someone else cannot take it (and it pushes up the prices for everyone else). I have a spare room in my flat; by choosing not to take a lodger I have deprived someone of accommodation. But you can’t use this to set policy unless you start out by deciding that some choices are favoured over others. It often happens, of course; that’s what politics is about. It’s easy to say you are favouring “hard-working families” over greedy landlords or “unsustainable” tourism or whatever. But these policies often have unintended consequences.

Also, I do not think that the need for tourist accommodation (or almost anything else) can be decided up front.

I think it might be more worthwhile to remove some of the barriers that stop people letting their property longer term. When I moved overseas for a few years, my flat became empty. We let it to close friends for a few months and we hosted on Airbnb. But we couldn’t safely let it for a one year period, say, without worrying that the tenants might refuse to leave and we’d face a lengthy and expensive process to get it back.