That is because taxation is not the main act, it is only the supportive act. The main act is creating currency from nothing. That is how the rulers get their wealth and finance their government. If you're paying taxes through your nose and think I'm being ridiculous by saying it's only a supportive act, think about this: Why is it so important that you and everybody else pay taxes to the government on your income and everything else, when the government can just print as much money as they need?
It is because the money would be worthless without the complicated taxation system. The money origins from the government (it says as much on the bills, even has a signature), and the only way to make anybody actually want that money is to force them to pay it to the government. So that's why there's so many and unavoidable taxes. If you work for a living you have to pay taxes in the government money - so naturally you'll want your wages in government money. If you make business, it's the same thing. And so on.
Taxes is the only way that the government can create demand for their worthless money, so that's why you have them.