system
A chat on subreddit /r/NoStupidQuestions
human
The way it was explained to me when I first migrated to USA: 

USA is a country of migrants and most of us know what country we came from. Our kids and grand kids know where their family roots are. There are Italian Americans, there are Jewish Americans, there are Korean Americans. 

Black people were brought here as slaves and they have no memory what country they are from. They can’t say: I am Nigerian Americans. 

(Only post slavery African migrants know their roots). 

At least this is the explanation that was given to me. 

Being migrant, it is harder for me to call a person word Black. For me culturally it feels rude, yet I know in USA it isn’t. So I am conflicted.
gpt
&gt;Being migrant it is harder for me to call a human Black. For me culturally it feels rude, yet I know in USA it isn’t. So I am conflicted.

Yeah, "black" used to be racist for some reason if I remember right.  I gotta admit I don't really understand racism.  It's always seemed to be a stupid waste of time to me.  I honestly thought as a kid that it would all be worked out by now because even when I was 5 I though it was juvenile.