I don't understand how this "disband the police" movement is getting so out of hand. The reason just about every functional government in the world has one, is because it works.
As a group, people are greedy, violent, petty, and easily led. If they are not keep in check by the rule of law backed up by the threat of legitimately-employed state violence, they revert to their true nature. Our country is "Exhibit A."
Without a police force, you'll first have individual vigilantes... then small groups... then big groups... then everyone has a group... then some of the big groups unite under a warlord... who then goes around subjugating other warlords (because hegemony is the only way to be legitimately safe).
Afghanistan, Iraq, and Syria, collectively, are "Exhibit B."
Meanwhile, everyone is reduced to serfdom, because hey, at least we have security. And besides, what are we going to do about it? The Brute Squad is the only ones with money, weapons, and organization.
But over time, a middle class begins to emerge. The Brute Squad doesn't like it, but they like the taxes they can squeeze out of it. And then the middle class begins clamoring for their "rights," especially property rights. And if the Brute Squad and its petty despot leader doesn't grant it to them, they revolt. Or, worse yet, they stop producing things. And then the tax base goes in the toilet, and then it's really hard to pay the Brute Squad or buy those new palaces or shiny swords or tanks or gold crowns, or whatever.
So the middle class starts getting rights, and the Brute Squad starts protecting them, and their property, and then more and more people start climbing out of poverty, and start clamoring for more and more rights. Capitalism and trade kick in, and LOTS of people start making money. And then LOTS of people want these pesky things called "rights," especially property rights. At this point, the government can either become represssive (North Korea) or permissive (UK). But either way, you don't want lots of little fiefdoms with their own militaries, so the government starts consolidating power, and a whole bunch of little Brute Squads become one big Brute Squad.
...and then the Brute Squad isn't the Brute Squad anymore, it's a professional, dedicated, and highly trained police force.
And so we are right back where we started.
If you destroy the police force, or if you "defund" it into ineffectiveness, you destroy the middle class. Without the middle class, the upper class and lower class will be perpetually at war with each other, until the lower class overthrows (and becomes) the upper class, or the upper class repressses and enslaves the lower class.
