Presumably the end of such a winter would involve the tech sector growing.

According to wikipedia[0] there doesn't seem to be any significant uptick in H1Bs. Is that what you were referring to by "immigrants coming over in hopes of getting a white-collar job"?

[0] https://en.wikipedia.org/wiki/H-1B_visa#H-1B_visa_tables_and...

I'm not American so I'm not specifically referring to the H1B system

In Australia, it refers to

https://www.education.gov.au/international-education-engagem...

So basically Australia wants to force the cost of employing workers down.