an armed society is a polite societyThis is such a throwaway slogan. Go check out the worst spots of Africa. Plenty of arms, not much politeness. Also, apart from not being true, it also encourages politeness for the wrong reason: fear of arms. Politeness should be due to respect of people, not fear of what they might do.
It's just as easy to say "an unarmed society is a polite society". There's not much difference between the US and Australia when it comes to politeness, and our society is unarmed. Japan is unarmed, and politeness is a keystone of their society. The British are unarmed, and their stereotype is one of unsufferable politeness.
Don't conflate resistance to oppression with incarceration rates, as the two categories practically do not overlap.
I wasn't conflating them, I was using it as yet another metric of US government oppression, which the armed population isn't stopping. Your last paragraph is also stating that the police are militarising due to the armed population, which is kind of my point - rather than prevent oppression, the armed population is actually doing more to increase it.
Also, I'm not sue what you mean by 'significant drop in violent raids', given that SWAT raids are skyrocketing, an order of magnitude more than they used to be. It's not really a victory if there's only a brief pause before business-as-usual continues.