Is the free market an individualist or collectivist social arrangement? Don’t answer too quickly. It’s a trick question. Most people — free-market friend and free-market foe alike — will answer “individualist.” And that makes perfect sense. The free market describes a political/legal environment in which individuals are at liberty to engage in any peaceful activity, with only force and fraud prohibited. No one may aggressively interfere with another human being’s peaceful projects.

Sovereign citizens getting put on lists.
Opposing taxation, supporting the gold-standard, and opposing regulations makes you an "extremist" according to the FBI.

"The extremists may refuse to pay taxes, defy government environmental regulations and believe the United States went bankrupt by going off the gold standard."

"Sovereign members often express particular outrage at tax collection, putting Internal Revenue Service employees at risk."