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This belief is associated with racism and attempted biological justifications for this concept are now regarded as pseudoscientific.
Miscegenation is a term for people of different human races producing offspring; it should be noted that the use of this term is almost invariably restricted to those who believe such "race mixing" is inherently bad.The racist and Anti-Semitic Nuremberg Laws enacted by the Nazis in Germany against the large German Jewish community forbade marriages between the Jews (deemed as Untermenschen - "lower people") and German " Aryans" (deemed the Übermenschen - "higher people"). Many interfaith and intermarried couples committed suicide when these laws came into effect.
While some people want to preserve the "racial purity", others think that, quite contrary, it is desirable to increase genetic diversity of human populations, arguing that it would increase the range of talents available to society; also, it would improve the overall health of populations due to heterosisHeterosis is increased strength of different characteristics in hybrids; the possibility to obtain a "better" individual by combining the virtues of its parents. mixed-breed dog This is commonly known as hybrid vigor . It is an observable phenomenon in wh (or "hybrid vigor"). The successes of United StatesThe United States of America also referred to as the United States U. America ¹ or the States is a federal republic in central North America, stretching from the Atlantic in the east to the Pacific Ocean in the west. It shares land borders with Canada in — the great " melting potAlternate meaning: crucible (science The melting pot is a metaphor for the way in which heterogenous societies develop, in which the ingredients in the pot (iron, tin; people of different backgrounds and religions, etc. are processed until they lose their" — may provide a support for this point of view.