I saw an article that capitalized black but not white. So I searched the topic and found an article. Black should not be capitalized unless at the beginning of a sentence or in the name of something. Negro should be capitalized. The same goes with white and Caucasian.
https://www.cjr.org/analysis/capital-b-black-styleguide.php I had an affirmative action teacher in college and she didn't even capitalize her own name.