Have you ever heard of private charity? Insurance? Fraternity clubs? Voluntary militia or neighborhood watches?

How do poor people defend themselves against their own state, when the state turns against them, in the current situation? You assume (or imply) government is now effective in protecting the poor and the weak. The state itself is the biggest threat against the poor and the weak.

And again, an RPG is effective against anything on the ground, that is less than the most modern tanks, and they cost $500 for the device and $100 for the shells. Defensive security is cheap.

Here, a private security company helping the poor and the needy for free:

Because being charitable is good business.