So in my mind extremism is bad either way you go and it is not something that anyone should brush off and say “these left wing extremists are fine” because reality never works out that way. Extremism is monstrous either way.

I suspect "true" Communism is something you'll only find on the pages of a book. Because in reality it goes from being a revolution, to a party, to cliques, to a power struggle, to a purge, to a dictator. And people get shot, tortured, beaten and sent to death camps every step of the way.