Like others have mentioned, the current political atmosphere is one that seems to have embraced xenophobia, thus making it harder for talent to emigrate. If you can't move the talent to the work, you can move the work to the talent. In that sense the internet is a great equalizer.
This reminds me of a quote from my international econ class in college: "You can take our tomatoes, or our workers. It's up to you to pick which you want" - Mexico to US
