[jveritas]

If you give the people of the third world a choice to go live and work in another country to get a better standard of living and an opportunity to become wealthy, the vast majority of them will come to the US. I do not think that only applies to third world countries but also to industrial nations as well including Europe and Canada, people in these countries also love to come work and live here, get paid more, pay less taxes, and buy almost everything at cheaper rates.

[Rummenigge]

I don't think so. The most people in the 3rd world don't even know about life in the US.

Many people in northern africa would certainly go to france because they speak french and given the facts about the US attitude to islam there's a good billion of people that wouldn't go near the US.
Certainly emigrating at an age of above let's say 30 deminishes the use of immigrating to the US.

BTW my friends from a german department of an american electronics company do not consider to stay in the US - although they are in CA very frequently.

Maybe it's because they have 30 days of holydays here.