It's hard to see into alternative worlds. I can tell you what my belief is, but I can't really prove it: if Meta did not exist (and no other similar company filled the same niche), the world would be better by most measurements. People would, on average, be happier.
People in general are better off living in a better world.
And most Meta Employees would have found other jobs. I mean, sure, in this alternate world some specific people would be worse off. I would wager they would be the minority by far.
Let me know if you get a timeline-scope and we can verify.
I think you misread my comment. What I meant is that I'm not only assuming Meta does not exist, but also assuming that no other company that fills the same niche exists. If there's another company which is essentially the same, just with another name and minor differences, it doesn't change much.
And? Why would Meta employees be better off if Meta didn't exist?