> So yes, your rights are given to you by the state and you don't really have any without the state enforcing them.

This ignores the Constitution and the acknowledgement of 'inalienable rights'.

   We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.--That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, [...]

In essence, the government of the United States derives its power from the governed, and otherwise wields no true power. The Constitution of this nation is written specifically limiting powers of the government, and not enumerating the rights of the people.

> If you could naively own your property then you could just tell the tax collectors to fuck off, what are they going to do with your property if it had been truly yours?

Yes. This is where the second and fourth amendments to the constitution are important. True sovereignty (not in the sense of that 'sovereign citizen' nonsense) comes with martial ability; that is, the right to take another life. Sovereignty is necessarily paired with 'power', as without it, there isn't any true ability to protect one's rights.

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All that said, I'm appealing to an ideal when I say 'property tax is theft'.