We Americans must realize that the altruistic ideals which have controlled our social development during the past century and the maudlin sentimentalism that has made America “an asylum for the oppressed,” are sweeping the nation toward a racial abyss. If the Melting Pot is allowed to boil without control and we continue to follow our national motto and deliberately blind ourselves to all “distinctions of race, creed or color,” the type of native American of Colonial descent will become as extinct as the Athenian of the age of Pericles, and the Viking of the days of Rollo.
Madison Grant was a popular early 20th century writer who was panicked about Southern European and Jewish immigration. He was highly regarded by many of the most influential Americans of his day, his work praised by the likes of Teddy Roosevelt. Grant significantly influenced American discourse on immigration leading to a virtual shutdown in the early 1920s. America's doors were still locked tight 15 years later as desperate European Jews were denied entry to the US.
More from Grant:
These immigrants adopt the language of the native American, they wear his clothes, they steal his name, and they are beginning to take his women, but they seldom adopt his religion or understand his ideals and while he is being elbowed out of his own home the American looks calmly abroad and urges on others the suicidal ethics which are exterminating his own race.