In this thread on Gal Gadot monstro makes a claim that “South Asian”, “Asian”, and “Jewish” are not ethnic groups, but “African-American” is.
There is some interesting discussion that follows and FWIW I think the subject is of interest enough to warrant its own thread.
Now she cited a dictionary definition:
Another phrases it as
And wiki might give the least poor one:
I have little debate with calling “African-American” an ethnicity (possibly several overlapping ones), and despite her initial flippant dismissal, “Jewish” I think clearly similarly qualifies as an ethnicity that encompasses several subgroups, but I have some lack of clarity as to how those definitions apply in a broader sense.
To me it seems that ethnicity in the actual world is context dependent.
“American” is not an ethnicity in America but it might be in Japan.
Is Arab an ethnicity? It encompasses several religions, different nationalities, different culinary traditions …
I am confused.