The fact you're downvoted to grey saddens me. For heaven's sake this is a tech forum and especially us techies should very well know that immigration and open exchange of people and ideas is the key to success.
Edit: I would upvote parent comment as well as grandparent.
Edit: I think it would be fair to this at some kind of ratio (e.g. spend 10 karma to for each upvote or something).
And the U.S. has excellent healthcare, public schools, and transportation for anybody who's productive.