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"As for Hispanics, they represent about 22% of Americans while blacks represent only about 12% of Americans. That extra 10% translates to about 30 million more people of Hispanic origins than of African origins."
Untrue. Per US census numbers, blacks make up 13.4% of the population and Hispanics 15%. That's roughly 4,000,000, not the 10,000,000 you claim.