If the mafia comes to your door and tells you that you need to pay them 50% of your income or they will come to your house and drag you to prison at gunpoint and shoot you if you resist, are you technically supporting the mafia's crimes when you pay them?
> No one kills people for not paying taxes. Your example is dramatic and detached from reality.
What do you think actually happens in the US if you refuse to pay taxes to such an extent that they come to arrest you for it, and then when they do you put up a fight? See also: https://en.wikipedia.org/wiki/Waco_siege