Every of them? It's like the base of Marxism, getting rid of racial and gender inequality

https://www.marxists.org/archive/robeson/1935/01/15.htm

I began with the obvious: “Have you noticed a race question in the Soviet Union?”

An undercurrent of laughter rumbled under Robeson’s big mellow voice as he answered: “Only that it seems to work to my advantage!”

And then he explained. He has been studying the Soviet Union for two years, studying the Russian language also for that length of time, has been a regular reader of the Pravda and Isvestia for months, and knows something about the solution of the race question here. He knows that the Soviet theory is that all races are equal—really equal, socially equal, too, as well as economically and politically. He expressed delight but no surprise when I informed him of the election to the Moscow Soviet of the American Negro, Robinson, working in the First State Ball Bearing Plant here.

But what he admitted he had not been expecting was the simple, wholehearted, affectionate welcome that lay in store for him. Robeson declares himself that he knows he has made a sufficient place for himself by his singing and acting, that even in the capitalist world some of the bitterest aspects of Jim-Crowism and white chauvinism are not applied to him. But it is just this feeling that a condescending exception has been made of him that is missing here. Here there is just the enthusiastic joy of Russian workers and artists, they or their fathers also once slaves of capitalist and landlord, who now welcome in addition a man they feel is a brother artist from abroad, coming with a real desire to honestly know and understand the new life they have made for themselves.