Have you ever worked at a large company? This is simply not how things are done. Speaking up about something like this is almost a guaranteed fast track to getting laid off in the next round of reduction in force, and if you do somehow have the pull individually or collectively to make a meaningful difference here, coordinating all those levers in a way that satisfies the board/shareholders and effects meaningful change is pretty much an impossibility. And we're dealing with nation states who are going to have their own levers to push (and internally too). For an individual contributor or hell, someone who's not on the board/C suite, quitting and letting management know they're losing talent because of their stance on certain issues is probably the most effective thing someone can do in that spot.

Following your line of thinking, why don't you join microsoft and effect such change? I guess it's easier to leave a moralizing snarky comment and feel good about yourself.

> if enough tech workers at Microsoft felt strongly about these ethical issues, they could influence Microsoft's decisions internally

This isn't how companies work or are structured. If you have the CEO's ear, potentially. If you don't, the only ethical thing to do is to quit. (I don't personally have an issue with the military per se. I have other issues with several tech companies which would make taking a job there something I couldn't do.)

"You know, if enough tech workers at Microsoft felt strongly about these ethical issues, they could influence Microsoft's decisions internally which is probably the most effective position to be in to do so."

The workers can't even influence things like office setup and floor plans. They certainly can't influence business decision to any meaningful degree.