It's stupid. It's always been stupid. America has never been as free or relatively prosperous as it was when it was composed largely of the descendants of its Anglo/Saxon founders. The fact that it did so well while getting so diverse was testimony to the soundness of the Anglo/Saxon ideas of those founders and our reverence for them. Thus there were in certain parts of the country Jewish Yankees, black rednecks, Italian hillbillies, and Mexican cowboys. But now that those ideas are actively hated and despised as the hate fueled racist rhetoric from a bygone and best forgotten age, diversity will do nothing but continue to divide us.