Written language? You understand this is completely different to language that was spoken yes? Most scholars consider the IVC script to be "Proto-Dravidian".
Proto-Davidian is defined as the origin of languages in India and Southeast Asia, and NOT the Middle East languages. Do you realize the origin of many of the aspects of spoken language is centered in the Southern Central Steppes of Asia.
Nonetheless
So Sumerian could indeed be the root to both the Indus l anguage and Hebrew, so how do you conclude that Tamil cannot be connected to Hebrew through a Sumerian root?
I believe to a degree spoken languages evolved naturally independently regionally and truly ancient including Sanskrit and Tamil in Southern Asia, The origin of the evolution of spoken language is much older and influenced by trade going back to the Neolithic..
en.wikipedia.org
Where did Indo-European languages originate?
The geographical location where it was spoken, the Proto-Indo-European homeland, has been the object of many competing hypotheses; the academic consensus supports the Kurgan hypothesis, which posits the homeland to be the Pontic–Caspian steppe in what is now
Ukraine and southern Russia, associated with the Yamnaya ...
Tamil is dominant in Southern India and is a much younger written language.
There is no evidence that Sanskrit and Tamil are the origin of Middle Eastern languages. Translation and similarities in words and names can go both ways as a result of trade going back to the Neolithic,
I am concluding the years circe 2200BCE-1900BCE was important enough on population groups that it required them to move.
True, but as far as what you call the 4.2 K event movement and migration was within the Middle East s per your reference and other sources. I can cite.
The documentation and modelling both suggest the change in the climate was worldwide. This is the understanding according to science.
True, mybe but different in different regions of the world. Southeast Asia was to a degree isolated from Climate Change due to largest mountain ranges in the eorld.
The desertification of the Sahara and Arabian deserts is described differently as part of the African Humid Period which occurred thousands of years earlier. It is what drove humans to establish civilizations along river systems, hence giving us the 3 ancient civilizations, being the Egyptian, Sumerian, and Indus Valley. It also preceeds the 4.2ky event period, and sits somewhere between it and the flooding of the Persian Gulf.
ALL part of the post glacial Climate Change. There is absolutely to evidence that the migration and population changes in the Middle East extended beyond the Middle East and Asia Minor.
I said earlier you are applying a macroscopic lens.
I DO NIOT DO THAT. Your problem is you are using selective inconclusive evidence to justify the Tamil as the origin of all languages, It is specific that the language tree of the Tamil ONLY applies to Southern Asia. There is also the problem of a religious agenda on your part.
We should look at what the science tells us, and apply it to the areas and timelines we are discussing.
True and I do that. The timeline most definitely traces the origin of spoken language structure and vocabulary originates in the Southern Steppes of Central Asia, and written languages originated in the Tigris Euphrates Valley
I believe that it is not illogical to consider that people would move towards "greener pastures" when the climate changes, and that they would also move to centers of large population groups.
True but as far as the Middle East migration and changes in population waa within the Middle East as per your reference,
Of course not.
However I am making interpretations and inferences from what is told to us by science, and what is written in Hebrew scriptures.
I consider science first and not scripture without provenance as you are doing.
You can choose to dismiss the scriptures as mythology, which is fine. But I choose not to.
I go by the facts of the origin of the Pentateuch as compiled after 600 BCE largely based on Canaanite/Phoenician, Sumerian, and Babylonian far more ancient text and yes ancient mythology.