It seems like Cory Booker is channeling Randolph Bourne (via):
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From Bourne’s “Trans-National America” (in the July 1916 Atlantic):
The foreign cultures have not been melted down or run together, made into some homogeneous Americanism, but have remained distinct but cooperating to the greater glory and benefit not only of themselves but of all the native ‘Americanism’ around them.
What we emphatically do not want is that these distinctive qualities should be washed out into a tasteless, colorless fluid of uniformity.
Bourne’s prefers the metaphor of a weave to food; he comes out against gluttony:
Only America, by reason of the unique liberty of opportunity and traditional isolation for which she seems to stand, can lead in this cosmopolitan enterprise. Only the American — and in this category I include the migratory alien who has lived with us and caught the pioneer spirit and a sense of new social vistas — has the chance to become that citizen of the world. America is coming to be, not a nationality but a trans- nationality, a weaving back and forth, with the other lands, of many threads of all sizes and colors. Any movement which attempts to thwart this weaving, or to dye the fabric any one color, or disentangle the threads of the strands, is false to this cosmopolitan vision. I do not mean that we shall necessarily glut ourselves with the raw product of humanity. It would be folly to absorb the nations faster than we could weave them. We have no duty either to admit or reject. It is purely a question of expediency. What concerns us is the fact that the strands are here. We must have a policy and an ideal for an actual situation. Our question is, What shall we do with our America?