Sounds like a good idea. But beware. It's been tried in France - and they finally stayed. They stayed as nothing was ready for them to stay. And much of France's today problems take their root in that failure.

Those who come just want to have some money & come back. But once they've experimented the comfort of living in rich countries where corruption is scarce, they tend to be VERY creative in finding ways to stay. Legal or illegal.

Ah, and remember : 1620 settlers of the mayflower were illegal immigrants stealing parts of the amerindian soil.....