The FBI is not limited to investigating crimes that are being planned or committed. They provoke crimes such as in the case of the plan to kidnap Michigan Governor Gretchen Whitmer. A majority of the participants were FBI or informants.
The others were social losers who had no chance against FBI money and excursions. Now several of them are serving several years behind bars and the Democrats and the FBI can show how great the threat from white power is. Your own.