I believe this was well known in the 1960s. The student radicals did not like LBJ or Hubert Humphrey or the other Liberals. The student radicals wanted extreme change and they knew that the old guys in the establishment who would seek some sort of moderate solution were just going to be in the way.
The proper model was first rolled out in the French Revolution and then perfected by Stalin — purge, purge, purge. Purge your enemies. Purge your friends. Purge anyone who isn’t perfect in your eyes.
“The proper model was first rolled out in the French Revolution and then perfected by Stalin ...”
And how did that work out for them?