I'm not sure telling everyone to associate a race with "master/slave relationship" is the best idea. Black people aren't the only ones to have been enslaved.
The association varies based on geography. American history is inextricably tied to the slavery of black people, so it's fair that the master/slave relationship is overwhelmingly associated with them in America
What do you mean? Slavery in America was inextricably tied to racism just as the Holocaust was inextricably tied to Antisemitism or the Civil War was inextricably tied to slavery. None of those aspects should be ignored or downplayed. History can be ugly and uncomfortable, but we should try to learn from it rather than ignore it.
