Even those of Arab or Turkic ancestors are no longer "pure". Its not like they bought a ticket and flew back to Arabistan or Turkistan for a bride. By now, most of their blood has been nativized, despite have an Arab or Turkic or Persian tribe name (given it is patrilineal).
Whilst Islam has not been in Bharat for as long as the Vedic and Puranic religions however Islam has been in Bharat for over 1000 years, that might not be long enough for you but more importantly most followers of Islam in Bharat are native, they just converted and those who were foreign...
The reason for the civil war of 1971 was not just a one sided racism issue...I know you did not mean to simplify it, however some one who stumbles upon this thread may come away from this impression and think this....
Why are Pakistanis so naïve? In Statecraft there is no such thing as friendship just interest...it is sad...but this is the way it is....of course have friendly relations on a national level and even individually...
The real failure are the Scholars.....they are the worst of creation beneath the sky....donkeys laden with books....(sad to say)...the State ought to put her effort into improving the calibre of Scholarship...
I know that is why Afghanistan hates Punjabis (even the Muslim Punjabis) because of their defeat at the hands of the Sikh Empire. Although they ought to realise that most Sikhs live in Bharat and not Pakistan.
However Pakistan is not the successor state to the Sikh Empire. I disagree with this...
We share similarities with a minority of Bharatis, that is all. And that part of Bharat should have come to Pakistan. But what is done is done.
I am more comfortable with a Pak Afghan than a Bharati Punjabi.
Also Durrani history and Sikh history are both part of Pakistani history and both did...