these Türks are a very productive thema of speculations, I'm afraid -
what we seem knowing is their first 'cradle' was far more remote in the East, in central Siberia
red hairs and light eyes are AN EXCEPTION among Mongols and even among asian Turkish tribes except some noticeable small populations - the slightly lightest turkic speaking populations of today are all of them populations where genuine Turks intruded among I-E (or other: finnic, ugric?) language - apparently 2000 BC they were signaled by Chineses between Bajkal-Balkach lakes - first written traces: about 732/735 AC (according to Wikipedia) i the Orkhon in Mongolia
where is the very precise cradle of turkic languages??? hard to say, surely not too westernly in Asia... I think firstly mongoloid for phenotypes - but languages were transmitted or abandoned, sometimes by force -
it is boring to read always speaking of these blond, red , "blue" exceptionnal reliques of "true old tribes" in countries far from Europe, or of 'black' Vikings - it seems "making the buzz" and pushing the weight on some 0,5% or 1,0% of some "mysterious authentic ancient" populations is the new way of making forum science?
no offense to anybody