Your argument only works if taxation is taking something "that's not yours". That is, your argument only works if you first have some theory of property. If your theory of property is, for example, that something is your property if other people agree to let you have it as part of a system of mutual benefit, then taxation takes property that is not yours, and thus cannot be theft.
My point is that your argument rests on some theory of property in order to work. If someone rejects that theory of property, the argument doesn't work.
Absolutely. If I encounter someone who doesn't believe private property, I'm unlikely to even bring up that taxation is theft in the first place. There would be no point.
It's not just that they have to believe in private property, they have to believe that private property exists as something other than a social agreement to let you have stuff for mutual benefit.
private property is private property Period.
That is scary, is that how the communists see the world?
yes you make a good point... the argument of taxation is theft depends on a rational sane person who understand that property is private, and we cannot bother arguing with communists who are irrational mystics like @mughat would say :D Mughat has taught me so much. As has @inertia