Okay that can be true but in retrospect I don't think people who go for such degrees want to go abroad for work. You can get a degree, get some financial backing and can easily get a visa to work anywhere in the world. Most of these will use the visa to go to a country abroad and then ghost the system or claim asylum.
I have a special hatred for people like these, it's because of their exploitation of the system that all asylum seekers are frowned upon in the UK with the media lighting the fire in its typical manner.
If say you get a degree or a diploma as an engineer you can probably find a job with a visa too, what happens on your first day of work when you are asked to solve a problem and your lies are laid bare.
There wasn't any checks on educational institutions as part of home office applications a decade ago but since then UK has established UKNARIC that qualifies every degree from around the world to UK equivalent so employers can avoid frauds. Whilst hiring now, it is essential that the candidates supply us their UKNARIC certification.
I am not sure how fail proof this system is but anything helps that keeps such frauds away.