I think the IRS still prefers to go after conservative tax protestors, but you have to be really dumb to tell them that you are protesting income taxes.
It hasn’t happened recently, but just about every year at about this time they send out the black helicopters or some similar equivalent and gun down the folks who don’t pay taxes. There’s no more grievous offense in government eyes, because their own salaries are at risk.
"Show me just what Mohammed brought that was new, and there you will find things only evil and inhuman, such as his command to spread by the sword the faith he preached." - Manuel II Palelologus