Your frined is not correct.
By the way, in my post I never tried to make anyone look ‘better’ than other. I just tried to mention the qualities and properties by which a person can tell who might be Pakistani or Indian if those qualities are observed or seen. (If those qualities are not seen or observed then it will be difficult to differentiate.)
In my post I also said overlap exists.
Brahmin is related to ‘religious caste’ made by Hindus themselves, not a national based difference. Meaning, a Brahmin may be Pakistani or Indian.