An armed society is a polite society.
But yes, my point was not to say table bad, wall good, just to rebut that walls aren't for keeping people in. People have the right to go wherever they want. If they want to leave, you need look in the mirror. Walls are for keeping people out.
As far as other ways to keep a community safe... Si vis pacem, para bellum. Part of that is passive power projection from the community. Like a wall. There is no offense and defense. Only passive and active power projection. Best have enough passive power projection so you don't need the active.
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