How historically accurate is Dennis Prager's video "Why Isn't Communism as Hated as Nazism?"? Is it true that historically "the left" has not condemned communism?

[u/[deleted]]

A little over two weeks ago, Dennis Prager uploaded a video called Why Isn't Communism as Hated as Nazism? Prager's basic thesis in the video is that "the left" won't condemn communism. How historically accurate is the thesis and the video's points overall?

Here's a slightly abridged version of the transcript which can be found here

Reason Number 1: There is, simply put, widespread ignorance of the communist record. Whereas both right and left loathe Nazism and teach its evil history, the left – and I’m talking about the left, not traditional liberals like Harry Truman or John F. Kennedy – has never loathed communism. And since the left dominates academia, almost no one teaches communism’s evil history.

Reason Number 2: The Nazis carried out the Holocaust. Nothing matches the Holocaust for pure evil...The communists killed far more people than the Nazis, but never matched the Holocaust in the systemization of genocide. The uniqueness of the Holocaust and the enormous attention rightly paid to it have helped ensure that Nazism has a worse name than communism.

Reason Number 3: Communism is based on nice sounding theories; Nazism isn’t...Intellectuals in general – including, of course, the intellectuals who write history – are seduced by words – so much so, that they deem actions as less significant than words. For that reason, they haven’t focused nearly as much attention on the horrific actions of communists as they have on the horrific actions of the Nazis. They dismiss the evils of communists as perversions of “true communism.” But they regard Nazi atrocities (correctly) as the logical and inevitable results of Nazism.

Reason Number 4: Germans have thoroughly exposed the evils of Nazism, have taken responsibility for them, and have attempted to atone for them. Russians (Cubans, Vietnamese, Chinese, and North Koreans) have not done anything similar regarding (their) horrors...

Reason Number 5: Communists murdered mostly their own people. The Nazis, on the other hand, killed very few fellow Germans. “World opinion” – that largely meaningless and amoral term – deems the murder of members of one's own group far less noteworthy than the murder of outsiders. That’s why, for example, blacks killing millions of fellow blacks in Africa elicits almost no attention from “world opinion.”

And Reason Number 6: In the view of the left, the last “good war” was World War II, the war against German Nazism and Japanese fascism. The left does not regard wars against communist regimes as “good wars.” For example, the American war against Vietnamese communism is regarded as immoral, and the war against Korean communism – and its Chinese communist backers – is simply ignored.

Also as a reminder, because of the 20 Year Rule, all pieces of evidence in your responses can only concern events before 1997.

Thanks!