for sure if you go far enough right you will be left. McViegh hated the ATF as did most people at the time. He felt that they murdered innocent men women and children and the sniper in question should have gone to trial for incompetence and manslaughter at best.
The ATF is not a left wing organization by any stretch.
McVeigh was an anti-authoritarian. ATF is an authoritarian state construct/institution.