I agree that Minarchism / Market Anarchism is the
only sensible answer, because no other political system will
work for everyone.
The problem is that people are used to thinking about politics as the full-stack computer operating environment, from the boot-loader to the GUI office and entertainment suite. The libertarian vision only covers the boot-loader, with the minimal justice system being the core
kernel, without any optional modules or drivers. Each individual person, optionally with the aid of whatever family / community / religion he subscribes to, can decide if he wants to run a wristwatch or a super-computer multimedia rendering system on top of that kernel. It's your computer, you decide what you want on it.
Democratic Socialism, on the other hand, no matter how nicely implemented, forces everyone to run the same software. The dissident minority, be it 49.9% or 0.01%, is forced to compromise. You try to uninstall some spyware, and the IRS will send you angry letters, schedule a court date, and violently arrest you if you don't show up. The government decided you need that spyware. You try to install a compiler toolchain, and you get thrown in jail. The government will compile everything for you! Only evil terrorists would ever want to write their own software!
If people want to follow certain rules, they can still do so under Market Anarchism. Stepping outside the software metaphor - Socialists can still get together and form a socialist sub-system under Market Anarchism w/o using force. The same applies to all other forms of authority - if you can get other people (not excluding your children) to voluntarily worship you as a monarch, dictator, messiah, guru, imam, commanding officer, or whatever else, fine, good for you.