Karl Marx was a man with crazy ideas, ut he was not an advocate of mass murder or of one party dictatorships.
Both Lenin+Stalin (and Trotsky) were primitive gangsters who believed mass murder was the best way to achieve Utopia. Marx didn’t believe this.Thus I guess he would have opposed the sickening crimes commited in his name.
He supported higher tariffs on Asian imports federal support for labor unions lack of regulations on the financial industry government control over wages and prices.