Dude. Cimmerians were not Indo-Iranian at all. Indo-Iranians didn’t existed anymore during the times of the Cimmerians, the Medes and Persians. Indo-Iranians existed thousands of years before the so called Cimmerians. Some say that Cimmerians were Iranic speakers, influenced by Iranic nomad tribes from the east. That means that genetically Cimmerians were not Iranic at all.
Indo-European culture is from the West-Asia. Maykop folks Indo-Europized tribes in the Yamna horizon.
R1* is not from Europe! R1b was born from R1* somewhere around the Iranian Plateau. R1a was also born from R1* not far where R1b was born.
Light hair and light eyes can be native to Caucasus, to a West Asian component. Nations in the Caucasus are not Indo-European at all, but they’re very light! Light traits are just native to West Asian component like they’re native to West European component!
Also, Iraq (Babylon) is NOT Iranian Plateau, but South Mesopotamia!
Also, Kurds are the Iranic Medes. The Medes were much morepowerful that the Cimmerians and Scytho-Sarmatians COMBINED! The Medes DESTROYED the Scythian kings in Kurdistan!
Indo Irainen culture is from Afanasevo, Adrnovo, Sinshta cultures not Maykop which existes as far ack as 6,000 years ago about thousand years before Indo iranien language began. The first Indo European cultre may have come from the caucus and those cacus people like Maykop may have had mix of a culture from the mid east and Russia and Ukraine.
All we know for sure is Indo European culture and language began around the Caucus, Russia, and Ukraine 6,000-8,000ybp. The Indo Iranians original ancestors came from a Russian culture named Yamna. You may be right i kind of think the same and there is alot of evidence for what u are saying about Maykop Indo Europeaiszing the Russians in Yamna horizon.
R1* is from 25,000-30,000ybp way way way way before Indo Europeans. Alot happens in 20,000 years also R1* is Mongoloid. Europeans and mid easterns are Caucasian. R1* orignally came from Siberian and native Americans ancestors so 50% of Europeans including myself trace their paternal line back to a native american looking person in asia 25,000- 30,000ybp. There are still some Native Americans and Siberians with the original form R1*
I guess there is DNA evidence R1* originated around the Iranian platue (it was still mongliods who where the first) it was so long ago it is much harder to say that than to say Indo European R1a1a1b orignated in Russia. Somhow Mongoloid inter married with caucasins then r1a started probably in Europe 18,000ybp and R1b started probably in the mid east 18,000ybp. That is still way way way before Indo Europeans.
So it is hard to figure out the history of R1a and R1b from 18,000-6,000ybp.