Or, you can do both.
I pay taxes, but I'm also involved with more noble projects like Bitcoin, supporting it and promoting it. If and when the status quo shifts, then I will no longer need to pay taxes. But complaining that we have to pay taxes and not doing so doesn't do anything. It's not selling out -- it's called mitigating personal stress and the stress of others while simultaneously doing all I can within the context that I am ultimately constricted to, i.e. acting within my capacities.
Of my debate "opponents" on here, you're the most logical, and sensible. I admire that, and respect it.
Let me state a few things:
1) Paying taxes, and knowing that if I don't, I risk being caged at best, and shot dead at worst, raises my stress level.
2) Knowing that paying those taxes, statistically, means that I am almost certainly buying a bomb, or a gun, or a bullet, that is going to be used to kill either someone who had the poor grace and misfortune to be born in a country rich in oil or drugs, or someone, who, like me, does not wish to support those actions, raises my stress level.
3) Knowing that there are people out there, who upon hearing the results of either 1 or 2, would cheer, raises my stress level.
So I do what I can to mitigate my stress level, even though that is fairly minimal. In every-day life, I'm a pretty stress-free guy, but that's primarily because I do my best to surround myself with people who agree with me regarding the nature of government and avoid discussing politics with those who do not.
When I do discuss politics, typically on here or on another forum, I consistently advocate two things: Avoid taxes whenever possible, so as to avoid supporting tyranny, and offer replacement services for those necessary services that government currently provides. This helps change 3, and relieves stress.
Agorism provides a clear path to a voluntary society. If you feel your money is put to a good use in supporting infrastructure, or medical care, fund or start a program which provides those services voluntarily. Supporting Bitcoin is a fine way to help move toward a voluntary society, because if Bitocoin takes off, taxes themselves will become voluntary. If, in the meantime you find that paying taxes so as to avoid the risk of imprisonment or murder is preferable to the alternative, that's fine. Don't advocate it, though, because despite what lies you tell yourself to help get to sleep, you are supporting tyranny.
One final suggestion: You clearly have some level of medical training, unless you went to all that schooling to push a mop. (Edit: or a pencil) Imagine, if you will, how much good you could do by directly helping those people who need medical care, rather than paying taxes to a huge government bureaucracy, which eventually gets around to putting some of that money to use helping people by funding that hospital? Take a look at your next pay stub, and ask yourself, How many medical supplies would a year's worth of just your taxes buy? Imagine taking that money that the government currently steals before you even get to see, and directly funding the hospital. How long until that earns you a wing?
Yes, taxes do fund a few good programs. but the lion's share of tax funding goes, not to paying for hospitals, or roads, or parks, but to buying tanks, and bombs, and lining bankers' pockets. Pay them, if you must, but don't fool yourself that you're helping anyone. Certainly not to the best of your "capabilities".