If you care about preventing Meta from doing evil things, you have far more influence and power over that if you work for Meta.
He owns the company and all of its decisions. He is literally accountable to no one, from the board down.
The only viable action here is to do what the Brazilian government are going to do - document the abuses, and fine the company into oblivion and/or ban it if it doesn't behave itself.
If the US ever recovers democracy itself, pass the documentation on to the new US government.
By witnessing first-hand the abuse and blowing the whistle on Zuckerberg for trying to manipulate elections.
The Facebook-Cambridge Analytica scandal broke because an employee leaked proof, and now Facebook has to cough up 25 billion in fines. Do you think Zuckerberg didn't felt this?
Far to the other side are are FU Money/assets CEOs and what have you that could quit what they are doing. Not terribly far from them are well-paid software engineers who could just demote themselves to a regular-paid job and be fine: https://news.ycombinator.com/item?id=50255234
Notably with a regular, not-terribly-evil job they wouldn’t disappear from society at all. They would still be a part of society.
people are not questioning whether or not the goal is good or bad. they're showing that the Concern is really a Concern Troll. that is, their concerns aren't really sincere.
that said i think the appropriate meme for this is the Big Chin guy