Seriously, if a government agency is targeting groups based on ideology,
that goes against everything this country was founded on - checks against government power by the consent of the governed.
I see no remedy for this except a purge, from top to bottom, of all in the IRS,
or, better yet, an abolition of the IRS.
I understand what you are saying but would add that there are some ideologies such as Islamism and Communism where it is a matter of national defense to target them using such agencies as the FBI.
Purge of IRS, OSHA, EPA, and every other federal agency that are used as modern day “white collar” armies against those of opposing beliefs, just as feudal barons had their bands of knights, or drug gangs have their “home-boys” do rough up and intimidate - in modern day America we have branches of our own government to oppress and intimidate half the population.