Millions of people leave their spouses, kids and parents to move to another country for work. Most don't even work anywhere adjacent to tech. We call them migrants. If you're ambitious/hungry enough, you'll do whatever it takes.
If IT goes that way, I would rather move to the countryside and grow my own food, than become an international wage slave who moves wherever our rich overlords want.
As I indicated, at the beginning of your career as a young person without a family or much tying you down, moving to a place where you're more likely to get a job in your field obviously makes complete sense, but that's not who we're talking about here. These are professionals-- many in their mid to late careers-- that got laid off, largely without notice. Being expected to abandon your life, mid-career to flock to the latest career hotspot because we complacently allow large established employers to pick up and discard large numbers of employees at their convenience-- demanding loyalty and offering none in return-- is not the same thing.
> Millions of people leave their spouses, kids and parents to move to another country for work.
Millions of people also have nutritional rickets.
> If you're ambitious/hungry enough, you'll do whatever it takes.
If you think system this rewards ambition anywhere close to as much as it rewards people already within the existing power structures, you're fooling yourself. Tech is no different than many other industries: it treats less privileged classes like donkeys while the privileged sit on top with a carrot on a stick being sure to let them get a bite every now and again when their frustration starts impacting their output. Of course there are individual success stories you can cherry pick to make it seem like reality for the majority, but you could take the worst NBA free-thrower and cherry pick them a perfect record.
You spelled "exploitable" wrong.