The words INDOCTRINATION and GROOMING come to mind when I read the highlighted contents. Especially coming within the larger context of your subject matter(s)- interracial mating, dating, and marriage. That makes me realize how seminal racism is among the homo sapiens as a species. Sobering, sad, and tragic = racism, the troubling persistence of an unscientific idea. If that last sentence sounds like an idea you have heard before, and you like history/ social studies you definitely want to read Robert Sussman's The Myth of Race: The Troubling Persistence of an Unscientific Idea. This is the trenchant title of a book by anthropologist Robert Wald Sussman detailing how race is not, and never had been, a valid biological category in humans. It was published in 2014 by Harvard University Press. persistence of an unscientific idea.