Downvote the shit out of me, but explain how this works in the above case where one (let's even expand it a bit and say) nation chooses to do this, and everyone homeless around the world with the means to make the journey, decides to head down there and enter the country by whatever means? We're not talking about a taxpayer base, just a whole ton of people that want homes, and of course some small subset of those people that want free homes. People seems to scoff at the "it's a complex problem" thing because they don't think of the solution to homelessness within the confines of reality.