Taxes aren't theft, agreed. It is like moving into a home but then saying "rent is theft! I don't want to pay rent. Landlords will use force to evict me therefore I am under a threat of violence!". Bunch of crap. If you don't like it move. Same with taxes. Let's see how you like not having a home and all the benefits that come with it.
However, I would like lower taxes. But the problem is I don't want to give up any of the protections or services the government provides. Which I realize is childish. It's like my kids want a big allowance, yet don't want to do their chores. So my only option is to be an active participant in my government to tune the taxes and what they are spent on. I vote and I talk with those I vote for, letting them know what I want. That is my civic responsibility.
RE: Outcomes don't morally justify immoral actions.