The first two things that happen to a black man when he enters a European town are these: he gets a job (very, very quickly; within days); and then he gets a local blonde, who just so happens to have been very pretty but unwilling to date local boys, who suddenly 'opens up' to the newly arrived black guy, and who is totally submissive to him, never looks at other men, and does all the things he demands of her in the bedroom.
Then the black guy starts moving up the social ladder and is accepted by powerful local white males, and he himself lords it over the young white males who were less fortunate in the local society.