[gcruse]

he Great Dictator (1940) includes a heartfelt appeal for
international intervention against Nazi Germany's persecution of the Jews.

And this was deemed immoral and communist?
 

[gcruse]

FBI labelled Chaplin a 'premature anti-fascist', and
continued to monitor him while he was in America.

Yes, in the same fashion that when the War
on Some Drugs is finally called off, those who
fought for its end will be classified as 'prematurely
rational.'

[Peter Libra]

I have to mention that Chaplin was like some entertainment figures of any period. They are persons who call for military intervention, if it suits their agenda, in common with Chaplin. He dodged the conscription act of 1916. He was of military age. It should be mentioned in passing that Stalin and Hitler signed a non-aggression pact in 1939. The British Communist Party refused to support the war- that is until Hitler attacked Russia in 1941.

Had Stalin sided with Britain and France instead, to defend Poland, there is a good chance Hitler would have reconsidered his ill fated attack on Poland. Chaplin was a nasty piece of work.

[Irene Adler]

Chaplin's overwhelming appetite for very young girls was well known in Hollywood and in the movie industry for many years. It made him an understandably unpopular guy in some quarters for a long time. He was an abusive and nasty man.

[20yearvet]

knighthood for the British star was discussed in 1956, but rejected after concerns over possible outrage in the United States.
It looks to me that it was the Brit's not the US who barred Knighthood to Chaplin.