> average citizens can be held responsible for the actions of their government, to the point that they are valid military targets.

What do you mean by this? If a government conscripts "average citizens" into its military then they become valid military targets, sure.

I'm not why you think this implies that developers working for Palantir or Clearview would become military targets. Palantir builds software for the military. But the people actually using that software are military personnel, not Palantir employees.