If you walked into an Indian restaurant that claimed to be authentic.. Watch
So your saying it would not cast any doubt on your mind in the scenario above?
I've had very nice japanese, vietnamese and korean food from small restaurants throughout UK ran by Chinese. Similarly I had portuguese food from a small restaurant ran by an indian couple, and it taste pretty authentic as to what I eat at home and in Portugal.
My favourite fish&chip shop is run by a family that emigrated to england from sri lanka.
My favourite italian restaurant has persian owners.
It is the recipes, ingredients, menu and style of service that determines cuisine authenticity.
Not the nationality of the chef or staff.
When you say “British” are you saying white? There are Indian restaurants that are owned by British whites? Never heard of this tbh it was a make believe scenario but interested in knowing of any.