In a true apocalyptic scenario where life won’t go back to normal we’ll force bullets into those guys and steal their generators while they dry heave blood on the ground.
Techies are far more valuable in the post apocalyptic world than you think. When the initial bloodshed subsides, people will want rudimentary communication apps and networks to get back to the old days. Only techies can build to those standards.
I largely expect this to be true. I also expect that with the passage of time there will be a decrease in population density to the point where an equilibrium is found between people and resources and behavior becomes more sociable again as that balance is restored. So, enough to get passed that initial period seems like a wise investment compared to being caught short. Will you survive the potential violence? I'd say that's stochastic, but you may as well take the chance.
Not sure why you’re getting downvoted but you’re right: people won’t just go away and die quietly. Maintaining a 24x7 guard over your supplies must be part of your prepper plans. Even then you’d better have the constitution to kill anyone trying to get your stuff. It’s not a pleasant thought and almost nobody is prepared to endure such a nightmare.
This is why prepping alone is impractical unless you’re just planning to live somewhere completely isolated from any possible humans.
I’ve always felt part of prepping should be to establish documents that details alliances and property rights with your neighbors and other preppers so when the government collapses you have a procedure to bring up a local rule of law and order very quickly.