Money, taxes, and the crime of theft are all creatures of the law. Taxes aren't theft because that would be a literal contradiction. Taxes are just part of the rules about how money operates.
I should also note that 1) the law isn't just what some individual or other feels is natural, 2) I'd imagine that primitive law that defines theft also defines obligations to the community (which are analogous to taxes).
Money, taxes, and the crime of theft are all creatures of the law. Taxes aren't theft because that would be a literal contradiction. Taxes are just part of the rules about how money operates.
I should also note that 1) the law isn't just what some individual or other feels is natural, 2) I'd imagine that primitive law that defines theft also defines obligations to the community (which are analogous to taxes).