Indeed you speak the truth.
Imagine if all committed Catholics and other pro-life Christians were to withhold paying taxes, to the extent that they can. It would be quite a witness to the power of Christ.
The bible does not allow that form of protest. Luke 20:25
Theoretically, if we really were courageous, we do have a moral obligation to stop paying taxes. But this means going to jail, how does a man decide who has a family to support, what is the higher responsibility? Interestingly, this is not pure speculation, Bishop Finn (pretty sure him) hinted at this possibility, of a radical change should FOCA pass and Americans be forced by the government to finance murder of the innocent.