Grossly incorrect. Where do these flights of fancy come from?
They were apparently, from the best evidence available, largely through the efforts of archaeolinguistic experts, break-away people from the majority Iranian faith system, a break-away people represented by two movements, one to the west, that landed up in Anatolia as the Mitanni rulers of the Hittites, and the other to the east, that crossed the mountain ranges between contemporary Afghanistan and Pakistan, and over the next millennium, influenced society as far east as the Rajgir mountains, that is, most of the Ganga-Yamuna Doab.
Genetically, there are very small, very exclusive fragments to be found in South India, that number less than 2% of the local population. The south was relatively less influenced by the cultural practices that were being formed in the north, by an amalgamation of the practices of the migrants and the original inhabitants. Some experts date this adoption by the south to as late as 600 BC or even later, covering the Deccan; it is possible that what is referred to as Tamilakam was influenced even later.
There is no evidence of this. What form, shape or volumes the migrations took are all largely speculative.
This is totally indefensible. Pathan and Tajik profiles are quite distinact from Punjabi profiles or the general ANI profiles of northern India. Pathan genetic profiles are linked to the Iranian, and Tajik profiles are not merely linked to the Iranian, they ARE Iranian, being descendants of the eastern Iranian speaking people beyond the rule of the Achaemenid Empire, loosely described as Scythians in the west, and as Saka in the east.
What does one say about such wishful thinking?
Using Aryan to designate race is obsolete by nearly a 100 years by now. It is clearly understood in academic circles, and by experts on the subject, that Aryan can relate at best to the Indo-Aryan speech of the original migrants into north India, and to the endonym that the Persians used, an endonym that bears no sanctity within India due to the extensive mingling of populations.