If you believe that taxation is theft then what is morally wrong with doing everything within the law (and withoutince it is written by those whose primary interest is in maximizing state income) to counter that theft as much as possible?
To avoid ("legally" or fraudulently) taxes is to push the burden onto the people who are paying their appropriate amount of taxes.
But to contribute to a corrupt, warmongering government, is also wrong.
What you can do - what I do - is choose to live in a higher taxed country that isn't nearly as bad with respect to how it spends tax money. And so long as you pay more taxes to the country you live in, you end up owing none to the US.
US military is not particularly known for its altruism. You may want to rethink the internal logic of your argument here.
Since you aren't in the U.S., though, I guess there isn't much you in particular can do.
But if your ability to avoid taxes is mostly due to your wealth and you can end up paying less in taxes than a normal family then something is obviously out of sync.
People say "social contract". When did we opt in, and can we opt out? It's being enforced without consent. We pay for things we don't want. Whether this be never ending wars around the world, or the welfare state such as the ponzi scheme known as social security.
You can opt out with the US government as well - it's just a bit more complicated to do so.
Because others contribute to your body's production. Your position only works if you are truly prepared to ask nothing from the state - not defense, not roads, not clean water, not law enforcement. Most people who take the "taxation is theft" position don't recognize how much they benefit from the existence of the state.
You are an emergent phenomenon - to claim "ownership" of anything is pure hubris, and reflects a dangerously limited understanding of causality.
(no, I'm not on board with the idea, but that's the gist. IMO it's a transparent rhetorical trick, but the emotion it drags along sure seems to convince/strongly-reinforce-convictions-for a certain set of people.)
But the low earning morons cannot see through this - those in power manage to use their latent enviousness of the rich to convince them that the taxes are for all those social benefits that they get. One cannot and should not argue with a moron.
You know, stuff paid for by taxes.