Comment by disbelief

Countries in the EU (and elsewhere) have more sane immigration systems. As a Canadian having immigrated to both Germany and the US, I can say that the US system is at least two orders of magnitude more difficult, costly, needlessly complicated, and in the end a lot of it comes down to luck (most of it bad). Germany has no lottery system, and renewal is very straightforward. I applied for my visa while in Germany as a tourist, I was issued a "temporary visa" while the final decision was made, and after I was accepted, the renewal processes every couple of years was essentially a formality. There is also a straight-forward path to permanent residency after X years working in the country. Contrast that with how things work in the US (which I don't have time to get into in an HN comment), and you'll see why it deserves to be singled out for this.