If I put a gun to your head and tell you to rob a liquor store, are you guilty of robbery? No. By placing your life under threat of death, I have removed all choice from you, and subsequently all agency. Anyone who tells you that you still had a choice is clearly demented as they think death is a viable option. Agency is moral responsibility for your actions. Without agency, there can be no virtue as the morality of the choice is removed from you. This is why government and all of its actions are morally wrong. Everything the government does comes at the threat of death or as a result of it.
Do you pay your taxes? I do, but not willingly. I pay them because I know that if I refuse, eventually a man with a gun will come to my house, threaten my life, put me in chains, kidnap me, and place me in a cage. If I refuse, or attempt to defend myself, he will shoot me. I have no agency in the action of paying my taxes. This is also why taxation is theft.
Now, you may say the government does some good things with the money it steals from me and everyone else in the form of taxation. Even if the money stolen in taxes goes to feed poor, blind, starving, AIDS ridden children in Africa, it is still an immoral act as the funds are ill-gotten gains. When the government provides welfare for the poor, retirement funds for the old, and education for the illiterate, it is not committing a moral action. The ends do not justify the means. Even if you support what the government is doing, you are not making a moral choice. No matter how much you delude yourself, you do not have agency in what the government is doing, and therefore neither you, nor the government is making a moral choice.
This is why anarchy is the only moral political ideal. Every individual has full agency for his or her choices, and morality falls squarely on his or her shoulders. If you choose to help the illiterate become literate, the poor get food, or the old live comfortably, you are acting morally because you have the freedom to choose not to do those things. Likewise, if you choose to rob that liquor store, you are responsible for that immoral act. Anarchy is the only system that allows humans to reach the full potential of their agency, and it is therefore the only system that can achieve human flourishing.