Every year, the US offers tens of thousands of work visas, which are eagerly snapped up by citizens of other countries. And yet, if an American wants to work abroad, other countries are stand-offish at best, with byzantine rules for coming to work e.g. you have to have the job offer in-hand before they'll issue a work permit, but no one will make you an offer unless you already have the work permit in-hand. Beyond that, few jobs are advertised outside of any country, and any applications made for jobs seem to fall into a black hole: no one ever responds to the application at all, sometimes they don't even acknowledge receipt of the application. This goes not only for companies based in those other countries, but even US-based companies with operations in those countries.

So when I want to come back to India to work, I send out hundreds and hundreds of applications, but I get no response at all. Even in instances where a special position has opened up, and the hiring manager directs applicants to send their CV directly to a secretary, I never hear another word and get no response to follow-up inquiries.