The argument “if you like taxes then simply go donate money to the government. You don’t? Then stop being a hypocrite and talking about how taxes are good” seems a bit silly to me. Sure, if you believe that any centralized taxation and spending is bad, then there’s no reason to support taxation. But if you do think that centralized spending can in certain situations outperform a free market, then you see taxes as a prisoner’s dilemma. If everyone cooperates, and voluntarily donates to the government, then everyone would be better off, but this is not a stable equilibrium, and every individual agent can benefit from defecting, and then everyone is much worse off, but trying to unilaterally start cooperating and donating money would make you even worse off. So you employ a very common way to resolve prisoner’s dilemmas: elect a guy with a gun who shoots at defectors. In this situation you end up being better off than without this guy, but your incentive structure changes only by the amount of shooting, and it’s still rational to not cooperate by any amount higher than what is being enforced. It is rational to want to resolve prisoner’s dilemmas this way, and it’s also rational to not be a cooperate-bot in dilemmas that aren’t being resolved.