Cara.

Here is what this article says.

"The popular classifications of race are based chiefly on skin color, with other relevant features including height, eyes, and hair. Though these physical differences may appear, on a superficial level, to be very dramatic, they are determined by only a minute portion of the genome: we as a species have been estimated to share 99.9% of our DNA with each other. "

SOURCE: Harvard = https://sitn.hms.harvard.edu/flash/2017/science-genetics-reshaping-race-debate-21st-century/

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As I said before.

RACIAL DIFFERENCES ARE "INSIGNIFICANT" at best. Yes, we are not all the same.

But who cares. Those differences are not major.

The only major barrier between ethnic groups is language. Once two groups can communicate with each other.

Common sense can allow them to live next to each other with no problem. It's when governments use racial differences to divide. That's when it becomes a problem.