Yes, it is a fascinating topic, albeit a complex one. Genetic studies are revealing so much these days about our racial origins. We should also keep in mind though that there has been a 4D STS influence at play too where human genetics is concerned. These beings treat different human groups as prize cattle at times, making genetic tweaks here and there as they please.
Many tribal groupings in Europe have roamed far and wide over time and one such people are the Finnish who were once the same racial stock as the Hungarians. Even then the true origins of the Finns/Hungarians seems to have been the Carpathian mountains in present day Romania according to the C's:
So, we may need to take 4D STS genetic tinkering into account too including the survival of Nephilim genetics, which will account for some cases of great height:
I myself am predominately a Milesian Gael, although with Nordic ancestry too through the Normans or Norsemen. In some ways the British Isles reflects a similar tribal divergence to the Finns and the Hungarians since there are two distinct strands of Celt within these islands with quite different Celtic languages (that are still spoken today). You have the Brythonic Celts in Wales, Cornwall and other parts of Britain such as Northumbria and Cumbria whilst you have Gaelic Celts in Ireland and in Scotland, especially the Western Isles and the Highlands. As Celts, they were once Indo-Europeans who continued to migrate westwards until they stopped at the British Isles (although the former British Empire has since scattered them far and wide throughout the world).
If you go further back in time still, it seems the Celts had common ancestors with the Russians:
I don't know how far back in time you need to go to determine when the original ancestral group split to become the distinctive racial entities of Celts and Russians but one answer may lie in Gobekli Tepe where we now know that Atlantean survivors of the Deluge regrouped some 12,800 years ago and subsequently fanned out from there over time. Indeed, I read only recently that geneticists have been able to prove that the people who built Stonehenge in England in 8,000 BC originated from Anatolia where Gobekli Tepe just happens to be found.
But then the C's also said that the term "Celt" was just a modern-day moniker and they were ultimately Kantekkians who seem to have been giants themselves originally and were likely the giant sons of Anak mentioned in the Bible:
And whenever we do get to see the Aryan undergrounders/ultraterrestrials posing as Martians, I think we will find that they are giants too.