Why do aliens seem to mostly abduct white Americans were the biggest minority on a world scale of population

you don't hear much of any abduction cases even in Europe I have heard of sitings an some abductions in England an France but not many an a few encounters an sitings in Australia an South America but besides North America Mexico is the only one with a lot of sitings but you don't hear much about abductions.why is that lack of communication or press 3rd world conditions?like Africa hardly ever hear of UFO sitings or abductions do aliens not see any use in blacks an prefer white people to research an examination China has alot of sitings an some abduction cases maybe alot more than we know because the communist government probably covers them up.what do you think?