albertleder I don't know where you found figures for Europe, I can't find anything tangible (such studies being forbidden in some countries like France).
On the other hand, for the USA, the black/afro American population is estimated in 2019 12.5 and 13.5% (and 40% for the non white population).
Even if this does not represent 1/4 of the population for blacks, we are not at "5%" either.
(yes, I like accurate information)