Dennis Prager said this quote
“ Given the amount the human suffering Communists have caused, why is Communist so much less a term of revulsion than Nazi? When people describe particularly evil individuals or regimes, why do they use the terms Nazi or fascist but almost never Communist? And, unlike Hitler, Communist mass murderers are rarely used as examples of evil incarnate. Sometimes, in fact, they are used in a heroic or even entertaining way. There are “Mao” restaurants in various cities in the Western world. It is unlikely that there are any “Hitler” restaurants in the West. So, too, while Che Guevara T-shirts and posters are ubiquitous, there is nothing similar celebrating a Nazi, or fascist, or perhaps any non-Communist killer. ”