As I said, without identifying and getting good samples from ancient remains of Kalash ancestors, all the genetic studies can show us is, what exists now. That’s it.
It isn’t surprising that a single generation of soldiers passing through left little in the DNA (although there is stuff there, again, it could have arrived with Russian soldiers, British Imperial soldiers, etc) after 2300 years.
That was the source I was sent, but I didn’t use it because it is so obviously relying on genetic studies to come to an unwarranted conclusion, then acting as if that settles everything.
Valid points!
Did the Kalash invent the Kalashnikov? A few of those might have persuaded the Macedonian army to take a different route.