There are Communist-themed restaurants - busts of Lenin and murals of Communist chic. But International Socialism has killed and tortured orders of magnitude more people than National Socialism. If one is ok then why not the other?
Nazi-ism is extinct. On the other hand, there are still communists who might be offended.
Because the Left sees nothing wrong with Communism and anyone who DOES is a "McCarthey loving fascist"...