> least some part of the populace is well armed enough to overthrow t

What a naive fantasy.

Organization of people is much more important than guns. You don't even need guns when you organize. You can stop the state just by collective action. See color revolutions.

When it is guns, you need RGP's, detonators and TNT (and drones), a good underground insurgent logistic chains. You also need commit to life in poverty and eventual death.

United States, Hungary, Turkey, Russia, Serbia have plenty of independent weapons, yet there is no fear of effective armed resistance. Everybody is a rebel in the Internet. When things go tough it's "I have to go to work and eat. My family needs me."