White Thief Disguises Himself As Black Man To Rob 6 Banks

This video shows how quickly it was believed that a bank
robber was African American, especially being based on
stereotypes this would naturally be the assumption anyways.

The criminal who did in fact commit the crime used
the misconceptions about race in modern society for
his own benefit - and to an extent it worked.

What does this say about how people of differing
nationalities are either critically examined or assumed
to have behaved in certain ways?