> 'm Russian and, probably, I don't really understand the situation with race in US.
Correct.
> But I think that MLK was fighting against this "X for black people" thing.
No, Dr. King was not fighting against Black-founded commercial services attempting to serve the particular interests of Black consumer. But, that's a pretty good illustration that your first sentence is correct (though its also a pretty good mimicry of American White conservatives coopting Dr. King, so, maybe you do understand a bit about race-based political propaganda in America.)
Correct.
> But I think that MLK was fighting against this "X for black people" thing.
No, Dr. King was not fighting against Black-founded commercial services attempting to serve the particular interests of Black consumer. But, that's a pretty good illustration that your first sentence is correct (though its also a pretty good mimicry of American White conservatives coopting Dr. King, so, maybe you do understand a bit about race-based political propaganda in America.)