Um, I've just started my own country. It's territory includes the entire universe. Everyone living in my country owes me taxes: $50,000/year. You consent to this obligation as a condition for living in my country. Pay up.
You also have to pay for electricity, water, and phone use--is that theft?
No, not as long I can choose whether to engage in the transaction, and am not coerced by others into doing business only with certain persons.
Somebody isn't thinking. Check back if you have a logical argument.