Or, in other words, how much will you deprive your own society of and contribute to American society, assuring our domination and your society's dependence and subjugation.
It's sad that people don't realize that or value the contributions they could make to their societies, to lift their cultures and countries, instead of compounding ever more advantages. It's brain drain. It's rather supremacist in nature too and not unlike colonialism.
But I'm not attached to my country, the country I was born in is an accident, they are conservative and short sighted, I don't care leaving (albeit, I don't think the US is really the best place to live).