The problems start when they try make something temporary into something permanent.
Sayonara.
These tales of victimization are just the opening gambit. They’ve already got the US COC singing their tune. Their financial resources and grip of ,already, certain industries, like medicine, will make a $100 k visa a mere piffle.
And take shortcuts. All. The. Damned. Time. You ever deal with coders from these countries? They are constantly using code snippets from anywhere they can find them, not vetting or testing the code properly, just slapdash google search coding, then throw it over the fence.