Worldwide labor glut of a billion adults already, with another billion on track to enter the world's workforces within the decade. Granted, most cannot so much as grow a carrot to feed themselves (no less the offspring they breed anyway). But the labor glut affects most education levels, skills, occupations, etc, in almost every country on the planet.
Shortages of highly educated, trained, skilled, experienced people - thus eligible for temporary employment visas and/or immigration somewhere - are almost exclusively in STEM occupations, and typically require minimum of master's degree + several years of experience in a STEM occupation.
This does not necessarily mean there are no opportunities whatsoever in other fields. E.g. journalists who work their way up the ranks to be assigned as foreign correspondents for their media might have a chance at intracompany transfer to their media company's overseas bureaus. But such opportunities are becoming increasingly rare. There are huge differences in overseas opportunities now vs. those in, say, the 1980s & 1990s.
And phenomenally more competition even for many STEM jobs eligible for temporary employment visas. It is not unusual for employers to have 100-1000 applicants from around the world for one job opening in a STEM occupation eligible for a prospective temporary employment visa. And I know of one instance where an employer who could NOT sponsor an employment visa still received 10,000 applicants from around the world for a job which required minimum master's degree + experience in an unusual field - he only expected, at most, 20 or so applicants.
IF you qualify for a decent job in your own country, thank your lucky stars, or you could be one of The Billion, too.