Arthur Miller never was grounded in reality and always was a Communist Party fellow traveler. His sole achievement was that as a nerd he got within fifty yards of Marilyn Monroe. Monroe should not ever be confused with the sharpest tool in the shed. It seems that half of Hollywood spent ahem quality time with Monroe. I think Buddy Hackett and Don Knotts can safely be assumed not to have spent quality time with Monroe.
Miller's fantasy is elaborated in the link below provided by Farmer John. He likens Senator Mc Carthy to Hitler which rational people know is a stretch. Communist were never placed in concentration camps . Their Ghettoes were of their own creation at a social science department in a faculty near you.
Miller white washes the evil of the American Communists. He does acknowledge the abuses of Communism with his mention of Kulaks and Stalinism. However he tries to lump anti communism with the abuses of the Communists. This is as insane as lumping the victims of 9-11 with advocates of Osama.
Communism from its earliest days was a seditious movement. The American Communist movement was funded and led by Soviet Intelligence. A government that is interested in survival does not need to explain to rational people why agents and apologists for a hostile seditious movement should not be employed in the Armed services or government agencies. The First Amendment does not protect sedition or treason.
Miller perpetuates the myth of innocent victims of facism. One can readily note that Communists who dissented from party doctrine faced more abuse from fellow party members then Joe McCarty or the US government.
I find it odd that Communist are the first people to bring up the dual loyalty question visa vis Jews. The familiar Neocon Cabal ( Commie slang for evil Jewish Republican all four of them) and the familiar refrain that the Iraq war was fought for Israel is a familiar Commie staple. There is no group that has a better tradition of sedition and disloyalty then Communists. Even the great conservatives Howard Dean and Susan Estritch have denounced this tactic as pure anti semitism. The same Commies who perpetrate the party line of Jooish cabals also get bent out of shape with any similar mention about Muslims in America. It is safe to assume the examples of Hassan Ahkbar and the FBI agent who undermined an investigation into terror were treasonous.
Miller never recanted and acknowledged the evils and espionage that Communist perpetrated. If the USA was 1/10 as repressive as his Soviet Union he would have spent his time in a Gulag rather then Sardis.