Would this ever have happened had they been white?
Relative to the issue of "rape", I suspect both white and black men rape women as well as other men.
Relative to the 30 yr sentence given the black men, had the rapists been white, at this time in the history of the USA, they would have been given comparable sentences, based on the specific Judge evaluating the case.
If the technology involving DNA identification/ characterization/sequencing had been available at the time ( 30 Yr ago ) when the rape case came to trial, the men would never have been sentenced to a jail term.
As you, MY LADY, are not an American, it is perhaps difficult for you,to evaluate the relations that exist between Black and White in the USA.
Thus, you immediately jump to a racist evaluation of current events that would "appear" to be racial in nature.