This playbook long predates Saul Alinsky. There was a book written many years ago: "You Can Trust the Communists (to be Communists)". As true in 2020 as it was in 1920.
#8. The book “You Can Trust the Communists to Be Communists” was by Dr. Fred Schwarz, (Australian). Believe his group was the “Christian Anti-Communist Crusade”. He put out a fairly good newsletter, a precursor to the more professional “Accuracy in Media Bulletin/Report” (to which I was an occasional contributory and AIM co-founder).
Just FYI!