There's certainly some proto-racist implied nationalism (of the bad kind) in saying that the USA can avoid having to educate its own children by exploiting a continual flow of immigrants.
Racist Point 1: Americans do not really matter to America. In fact, the American populace mainly exists to supply America with peasants and servants (as in: workers in service jobs), not serious value-creators who receive good compensation.
Racist Point 2: Foreigners all love America and want to come to America and form its elite. The notion that non-Americans might prefer to live in their own countries, or that there's a point to their existence other than immigrating and forming the American elite, does not occur.
