I’ve concluded that most people care far more about appealing to the crowd than actually thinking by anything through.
Sometimes people aren't in a position to be secure enough to act. Sometimes different issues are more effective at resonating enough to break through previously cached unconsidered patterns of thought. Sometimes people don't know all the things that are going on, and act once they've learned about them. Whatever the reason, if your reaction is "took you long enough" rather than "welcome", you discourage people from acting.
Don't punish the behavior you want to see more of.
(Also, OP is not even an instance of what you're decrying; see https://news.ycombinator.com/item?id=49647687 .)
You’re making money from venture capitalists and tech firms, MS, Meta, X, Google, etc… which of them is any better than MS? They’re all awful in different ways.
I can't tell if your actual goal here is to be dismissive of the entire concept of people caring about ethics, or if you don't think that quitting is an effective means of acting in concert with those ethics. If it's the latter, then I'd suggest that it's a start, not everyone is in the position to do even that much, and some people who do so will be able to go further. Don't let the perfect be the enemy of the good, particularly if someone is taking a step in the right direction.
Ironically, you are doing your own preaching in your comments. It could even be described as "performative."
Talking about doing something on a 4 month old account is not the same as doing it. I give credit to people for doing things, not claiming to do them in an anonymous forum they just joined. Cynical? Perhaps, but maybe if people were just a bit more cynical about believing any text on the internet just because it feels better to believe it, we'd be better off.