In my younger days I had the opportunity to meet many of the leaders of the John Birch Society as well as many of their prominent critics.
In almost every case the JBS folks were intelligent, well read, careful with their research, articulate, polite, thoughtful and wise.
Their critics—not so much—seemed to excel most at name-calling and finger pointing.
My older brother took me to one of their meetings when I was a teenager- very informative.
History repeats.
The John Birch Society was one of the first victims of National Review's gatekeeping operations. I don't know why they were cancelled, but it was probably because Buckley either thought they were conspiracy nuts or anti-Semitic.
My mom (1937-1990) used to rail against the “birchers”
I never understood why and wasn’t curious enough to look into it. She was a faithful follower of the main stream news.