And then there's Yiddish...much of which has certainly been assimilated into the common language, even if the 'Members of the Tribe' themselves haven't yet been able to parlay its popularity, (or threaten the country), into a successful bid for the White House. When was the last time someone was offended by someone else's use of the word "schmuck" or "putz"?
(Nor do I think that one should be selected for such service based upon race, ethnicity or creed. Call me old fashioned.)