It's a pretty stupid situation. For instance, it's peculiar that immigration law would actually discourage visitors from getting jobs. Having a job contributes to the overall well-being of the economy and society, so even if this monk actually had a real job, would that be a bad thing? Immigration laws are really such outdated racist policies, which today are supported by xenophobia and ignorance of economics.
I hope the monk gets to stay in America, but if he doesn't, nobody, especially the monk, should be bitter or disappointed, because -- what else should you expect? If there are lots of silly laws and regulators, things like this will happen.
Also, what's special about America? Aren't there countless human beings that are unhappy, countless places to spread peace and harmony? Why America?
The best things in life aren't things.