You should acknowledge the differences, because scale matters. Finland is a bitterly cold country (in winter) with a hard to understand language and 5 million

You should acknowledge the differences, because scale matters. Finland is a bitterly cold country (in winter) with a hard to understand language and 5 million people. The local homelessness problem has some relatively low upper limit. The US is a country of over 300 million and SF has very good weather all year round. Its migration potential is almost two orders of magnitude bigger.. If you simply give a home to everyone who turns up in SF and says that they need it, you won't have enough homes. You could deny coverage to anyone who moves to SF after a certain date; that would mitigate the "amount of homes needed" problem, but it remains to be seen if the homeless community does not grow back to its original size.