Does that mean that the US is perfect?

This appears to be the root of it. America gets some sort of ideological benefit-of-the-doubt, such that My Lai Massacres and engineered famines in Cuba and Korea and blacksite prisons that use genital mutilation to extract confessions are degrees shy of perfection rather than war crimes, atrocities, and holocausts.

Is authoritarian communism better? LOL, no.

Is your problem with the authoritarianism or the communism?

“The very concept of “revolutionary violence” is somewhat falsely cast, since most of the violence comes from those who attempt to prevent reform, not from those struggling for reform. By focusing on the violent rebellions of the downtrodden, we overlook the much greater repressive force and violence utilized by the ruling oligarchs to maintain the status quo, including armed attacks against peaceful demonstrations, mass arrests, torture, destruction of opposition organizations, suppression of dissident publications, death squad assassinations, the extermination of whole villages, and the like.”

― Michael Parenti, Blackshirts and Reds: Rational Fascism and the Overthrow of Communism