This sort of article, even by Radio Liberty/Radio Free Europe -- which knows better -- was bound to appear during the Russian-American summit with the first black American president visiting the Kremlin. Just as the politically-incorrect Charles Wrangel quipped that Obama should stay out of visiting some New York City neighbourhoods, where even black policemen are mistaken for criminals and shot to death by their fellow policemen -- Obama should stay out of a lot of Moscow neighbourhoods where even just plain white Americans can face rampant hatred.
Criticism of American racism was a long-time staple of Soviet propaganda, and the existence of both slavery and its after-effects in racist policies were often duplicitously used by the Soviets to distract from their own crimes against humanity on their own territory.
It seems as a consequence of that very effective propaganda, especially as imbibed more uncritically by the Internet generation, liberal intelligentsia in both America and Russia today still see the American legacy of slavery and racism as "worse" than anything that ever occurred in the Soviet Union. I think this bears some nuanced context -- and a lot more history than it gets.
People who have a stake in trying to portray the U.S. as "worse" cite what in fact was highly selective propagandistic Soviet manipulation of figures like Paul Robeson as proof that the Soviets were "more tolerant". Or they cite the presence of a figure like Yelena Khanga in the Russian elite of today as proof that Russians are "more" progressive and tolerant on race.
They aren't. And the Soviet legacy is abysmal, regarding the minorities and non-Russian ethnic groups on Soviet territory as well as those of Africa descent.
The alarming increase in racist murders in Russia indicated by the research of Sova and other human rights monitors is part of the story that lets us know that all is not well with the issue of race in Russia today.
But it's also worth looking at the two countries over a longer period of time.