In United States of America (USA), there are so many different races or Diversify people like…. (1) Politicians from Ireland (2) Rocket Scientists from Germany (3) Building Engineers from Britain (4) Road and Bridge Engineers from china (5) Auto Engineers and scientist from France (6) Aircraft Engineers and technicians from Russia (7) Software Engineers and programmers from India (8) 3rd class Labors from Mexico (9) Gangs from Italy and Africa (10) Dacoit and Thieves from Nepal, Pakistan and Bangladesh Etc…. but they run country very well.... Therefore.... Diversity is the great things to have. You are wrong 100%. and America is vastly diverse country.