@TomSullivan
Yes and no. It really depends on the country and what you bring to the table... A US medical degree? A better than even odds for most counties. A collection of Chump memorabilia to North Korea? Probably yes, as long as their dear leader can use you for propaganda.
Seriously though if you can pay your own way, you shouldn't have too many problems. But therein lies the problem because when the US collapses, so does the US dollar and China is already working to replace it