We'd probably have a conversation much like this one. I hope we'll always have conversations like this when told something that we do is hurtful to someone. It would probably be a different conversation, though, since Germans have not been thought to be persecuted, stereotyped, and economically oppressed on a large scale alongside the usage of the term "allemande."

It also seems pretty unlikely since the word gypsy is fairly well known to be at minimum controversial (check out the citations on Wikipedia: https://en.wikipedia.org/wiki/Names_of_the_Romani_people#Gypsy_and_Gipsy) and allemande is not.