[superconductor]

Next it will be "you are too stupid to live here" or "your personality is sufficiently grating enough to deny citizenship".

Laugh, but that's where it goes from here.

[fiatmoney]

Why exactly is it a bad thing for a country to decide it wants a intelligent or friendly (or healthy, in this case) immigrant population, rather than the opposite?

[rdouble]

That's pretty much how it works already in 'points' based immigration schemes.