You said - "there is mixture of all genetical types."
So Jats are a mixed people. You agree then.
IF we speak in terms like this then aryan is also not a race but a people speaking a common language. Can we call dravidians with the term employed by the Aryan invaders of india - Dasyus? Don't know the exact term.
Dravidian languages are different from Indo-Aryan languages. The common words can be ascribed to contacts between the speakers of these 2 different language families.
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What you are raising is important issues in the context of historical inquiry.
However like most of us, there is some ramping up to be done, before it is possible to have a substantive. informative discussion.
First : there is undoubtedly a mixture of genetical types in all people, some more and some less.
Then the question is what is the ethnic ( group) identity.It cannot be simply based on a physical type, though a physical type may be dominant. What are boundaries of the group? What are the cultural limiters?. When does a Jat stop being one?.
Second.
Aryan is definitely not a race, not as per my understanding. I will be happy to be educated as to why it should be thought of as a race. Language is no indicator of race, people of different races , groups, can speak the same language e.g English
Third:
What evidence is there for an Aryan Invasion? or that Aryans existed as a distinct racial group?
How do you or anyone else, draw a conclusion that the term "Das (Dasyu)" refers to them being of another racial stock, in this case Dravidian.
Das is a common Hindu name, the learned poet Tulsi Das for example.
Was Tulsidas a Dravidian?
Das simply means disciple. It can also mean slave or servant.
Dravidian language:
Even here there is plenty of doubt about the accepted two language theories.
The simplistic theory is Dravidian- South Indian, Aryan -North India. This does not work.
This Aryan - Dravidian construct, was a political Construct, by the British Colonialists, and developed to suit their purposes. Unfortunately this has become enshrined in our Indian Academia, and this is what is taught to us in school and college.
It is a fascinating subject, and if you wish to explore it, I can give some directions to explore.
This is not intended to be lecture, but rather to point out that we cannot accept simplistic explanations, and that we should go out and research the material, and follow the evidence wherever that evidence leads.
Best Wishes
Ravi Chaudhary