African Americans and Gypsies have a cultural relationship formed through slavery and hardships and of marginalisation through racial visibility, eventhough it must also be noted that african americans are much more emancipated and part of mainstream society in the USA then gypsies are in europe. The african americans have also elites and middle class, while most gypsies lack that and are a underclass. So while bother are similar they are also different.

Common thing is also racial visibility and racial stigma, but the african americans were and are much better at overcoming that.

From the Gypsies to the African Americans
http://www.jsri.ro/old/html%20versio...re-articol.htm

African Americans and Gypsies a cultural relation formed through hardship.
https://sfbayview.com/2013/09/africa...ugh-hardships/