It's interesting that some on this thread have raised the problem that protesting military technology hampers you compared to your potential adversaries. This is a topic covered in-depth in Dan Carlin's Hardcore History episode "Destroyer of Worlds" [1], which talked about the development of nuclear weapons after WWII.

One point of contention was the morality of developing the hydrogen bomb and people will ask the question "what if our enemies have it and we don't?"

On the other hand, anyone having a particular capability greatly increases the chances that everyone will have it. The US thought the Soviets would take 20 years to develop the atomic bomb. It took 4 years thanks in no small part to espionage efforts by the USSR. Part of the reason why this worked is people who didn't want a world where only the US had nuclear weapons. It would be too dangerous.

So for any military tech that US companies develop consider how likely that is to stay in their hands and not be stolen by China.

On a personal level I support employees holding their employers accountable. If you think you're absolved of moral responsibility for what the company does let me ask you this: why then aren't the lawyers who work for patent trolls or the price gouging executives at Big Pharma or those who worked for Big Tobacco?

[1] https://www.dancarlin.com/hardcore-history-59-the-destroyer-...