I think 76.3% white is misleading because, while the U.S. Census Bureau counts hispanic people as "white", basically no North American's intuitive model of race or ethnicity would count hispanics as white. Which is why the Census is always careful to break out non-Hispanic white.
The real comparison is non-Hispanic white to non-Hispanic white, where it becomes ~55% to ~75% or so. Hispanic people in the U.S. are easily visually differentiable, most often have one or more languages aside from, or instead of, English and come from cultures that are markedly different than mainstream U.S. culture.
The real comparison is non-Hispanic white to non-Hispanic white, where it becomes ~55% to ~75% or so. Hispanic people in the U.S. are easily visually differentiable, most often have one or more languages aside from, or instead of, English and come from cultures that are markedly different than mainstream U.S. culture.