People are not altruistic enough so we need government... made up of people.
You should check your logic there.
You don't pay taxes. They take taxes whether you consent or not. Taking something without the consent of the owner can be called many things. If it's property that is taken you call it theft, if it's sexual you call it rape, etc. Obviously consent is a very important aspect of human relationships. A civilized society would not have, at it's core, principals that violate consent.