Which I mean, my wife believes that the government using the threat of violence to collect taxes is immoral, unethical, and that all transactions between all individuals should be voluntary and nonviolent. Which in terms of popular discourse, is very "extreme". She was thinking about running for local public office an a platform of "the government will not take away your propery for failure to pay taxes" which a surprising number of local people on Facebook supported. She's been going to Meetups and having people say "oh yeah I saw your meme, the government sucks, keep it up!" She bugs local politicans on Facebook, their ads keep popping up in her feed, so she'll ask them things like "do you think it's moral to seize someone's property when they can't pay their taxes?" which of course gets bullshit nonanswers from politicians. Nobody wants to say "I think it's moral to seize someone's house because they're behind on taxes".
An authoritarian government wouldn't like someone like my wife, and they certainly wouldn't want her getting likes on Facebook. After all, what if she DOES run for office? What if she wins? What if other people like her win?
Yeah, it doesn't own it: the relationship is more fundamental than that. Government (and its primitive antecedents) is the system that enables you to own property in the first place, and taxes (or their equivalents) are the price of admission to that system.
I wouldn't mind making taxes voluntary if it also meant surrendering property and other rights (though of course to be just that surrender could only happen after a formal renunciation of the obligation, not just a failure to pay). So you could choose to not pay taxes, but then all your property would become legally abandoned and you'd lose the protection of the law.