I'm guessing here... but it shows an ape, a man-like ape and then lastly what appears to be a black man.
There person at the end doesn't matter as all three are stages in human evolution, the second being Lucy an ancient hominim who was discovered 41 years ago yesterday.
It looks like peewee Herman to me but so what if it IS a black man. How would a black man at the right of an evolutionary progression be racist?