It's also a disseminate problem. Striking against long working hours is easy. Striking against corporate values that enable seemingly distant problems (surveillance states) while working on a friendly low-stress high-pay team... that's hard. Unless you actually care.
Maybe some people are learning they don't actually care... that their "values" were just shallow social posturing, worth less than their stable high-income...
Hopefully, though, some also realize tech is one of the few areas where workers still truly have the freedom to actually demand an ethical employer - which may involve looking elsewhere. Follow-through is always scary, but no worse than uprooting our lives moving to college and then again moving to big-tech cities.