  WN explain why the most culturally, ethnically diverse country (America) is also the most successful/powerful?   Explain to me why in the 1950s the USA was 90% White and segregated. Since the 1950s the White population has steadily and as of recently, rapidly decreased, meanwhile the non-White population has steadily, and as of recently, rapidly increased. In this time, since the the 1950s, America has continued to go downhill in about every conceivable way. Do you see any correlation here? Because I do.    America got to be powerful because it was created and maintained by Whites, and Whites made up the vast majority of the population and were the only people who could become full citizens until the Civil Rights movement. America was not very racially diverse until only quite recently. Now that that is changing, you see it steadily descend into oblivion. Taking more non-Whites into this country is like taking more water into a sinking ship.    Explain to me why one of the world's most culturally and racially homogenous countries (China) currently has the fastest growing economy in the world, soon to top the US. Explain why argueably the world's most racially and culturally homogenous country (Japan) has one of the highest standards of living in the world and is perhaps the most crime free and clean country in the world. Homogenous societies become successful, non-homogenous societies fall apart and descend into chaos.