When you look back at segregation?
You find a mind of a fool that based decisions upon race?
Within various section of a racist society, you question things.

When anyone of color visit a place for food?
They mostly were denied services showing the minds of a fool.

Who didn't see truth?
Electricity bills require money.
Rental spaces required money
Water bills require money, and at the end of the day it has nothing to do with color of a person skin.

Because the color that control things simply was green.