The things you describe are far from the charged language you're using, and also much of your description may not apply at all to the post you responded to.
How does someone quitting their job because their work is playing a global pandemic step by step help any of the things you listed? This approach is a very logical decision and honestly complaining this loudly about that step is incredibly privileged in a time where many are facing layoffs and pay cuts. Oh no! Your company has kept paying you, you're working remote for a job you were hired for in person, but you can't get a guarantee of when you'll be back in the office because of a pandemic? The horror!
That's not to take a "be happy with what you get and lick the boot" approach at all, but many companies have quite nice policies in regards to how COVID-19 is being handled.
Your issue appears to be with non-remote work in general, but you also make it seem like high COL cities are the only option. If someone is not able to be mentally stable working in the bay or Seattle or NYC etc, there are plenty of small cities with tech jobs that will pay good money with low COL and a short commute they can go work at. They absolutely should quit, for themselves. That was true before any pandemic.
> The people that have incredibly poor mental health because they're pulled into gross office politics that pit employees against each other.
Again, where was any of this mentioned? It sounds like you are projecting the issues of some companies. These companies should absolutely change their behavior, but again, this was true before the pandemic. I'm not sure how someone quitting will tech them a lesson either as those places probably already have high turnover and they won't have much issue hiring n the current market.
You say you create it through leverage, but I see no such leverage being developed in quitting even if all of this was true.