Because if you don't pay your taxes, they turn you into a Ruby Ridge. It's literally that simple. In the "Land of the Free", we are all of us are held at gunpoint from birth to death. Pay your taxes, poison your kids, live next to violent literal half-apes, or else they will erase your existence, slander your corpse, and sell off your family. Or they'll just shoot you in the public square if you decide to get mouthy.