To be honest, I'm more interested in what ideology/religion lead to the Yamnaya Y line taking over a continent in a timespan of over thousands of years to almost utter replacement despite of the fact that, in the end, the "invaders" were almost identical to the "invaded", than I am in elucidating whether Llama 3 being less performant than Gemma 4 in benchmarks is due to the training corpus or the architecture.
I don't feel like being racist either way.
Regardless of how you feel about being racist, some people will accuse you of being uncomfortably close to a Nazi for talking about the Yamnaya Y line taking over a continent, because 19th and early 20th century anthropologists that the Nazis liked and amplified the ideas of really did think that the Yamnaya Y line took over a continent, they just called them "Aryans" instead of "the Yamnaya Y line".
There’s really only one way you totally replace male lineage.
Based on the evidence we have it seems that they simply killed most (in some places almost all) of the local men they could find?
Who is they? The Yamnaya never made it out of the Ukraine.
We know people often kill people. That doesn't even need explanation.
My argument is that it is thousands of years and dozens of mixed generations.
Why do you decide to participate in a thousand-years-long campaign to kill the neighbor who is also your second cousin?
There is no reason they couldn't have turned the other way and attacked their other second cousin.
My best guess is religion but it could also have also been a different kind of fanatic ideology.
The immigrants from the steppes and their descendants. It's hard to interpret the fact that the majority and often 90% or more pre Indo European male lineages were replaced in Western and Northern Europe in any other way.
Sure it took many generations but it's hard to imagine that the violence wasn't culturally and racially motivated. Based on genetic evidence it's speculated that that there were more than 10 male migrants to every female coming from the steppe.
> The Yamnaya never made it out of the Ukraine.
I'm not sure what that means? Their descendants clearly did reach Iberia and Britain.