wow... i just realised that "taxation is theft" totally begs the question!
the same system that imposes taxes defines property laws. they're indivisible. there *are* no "natural" property laws or rights outside of that - other than "i have a gun; this is now mine; go away". which only becomes theft once a (fair!) legal system assumes authority over both parties, as many many defeated, displaced civilisations and individuals have discovered to their cost... and it's by that same authority that taxes are raised
seriously, this was a major moment of enlightement for me. thunder clapped & a light shone from the heavens & everything ;-)