[mistermumble]

The good ones come to the US to get better paying jobs. I ran a team of 25 software engineers. I tried to hire the most talented programmers in a tight job market. All but one of the engineers I hired were born outside the US.

[ap22213]

It could be because people who immigrate here are significantly more motivated than people in general.

I read somewhere that many of the most successful entrepreneurs in the US are foreign born. That doesn't necessarily mean that foreign born people are better than American born people (which would be unlikely). It probably just means that people who have tenacity to immigrate also have tenacity to do bigger things than average.