50th percentile Non-Hispanic White, male 20 and over, height: 176.7 cm
50th percentile Hispanic, male 20 and over, height: 170.3 cm
50th percentile Asian, male 20 and over, height: 170.4 cm
50th percentile , African-American, male 20 and over, height: 175.9 cm
Well, isn't that a fine kettle of fish. According to the CDC, which reports to Biden, Non-Hispanic White men are the tallest demographic and all of the Peoples-of-Color are shorter. Hispanics, whose US population is 50% larger than the African-American population are more than 2" shorter than Non-Hispanic Whites.
And of course, increasing leg room does nothing for most women. NOT charging extra for extra legroom disadvantages nearly all women.
Not every African-American is Shaquille O'Neal. Even so, the 95th percentile African-American only edges out the 95th percentile Non-Hispanic White male by a measly 0.4 cm or the thickness of two nickels.