[sinxoveretothex]

I have a pretty big problem with the idea that if people won't do what's in their best interest, then we ought to make sure the system doesn't suck too much, even though it's guaranteed to suck because of those people's decisions (per your contextualization).

Why couldn't a government incentivize these people to move (say by offering subventions for moving out of some given place) instead of of incentivizing staying (as I understand your description to be)?

I'm fully ready to believe that government just can't be trusted with such far-reaching and non-obvious schemes, but I'm curious to know if someone can think of a way such a scheme would fail in practice (in other words: how is it like communism)?