Putting aside XX/XY; and Azovians/Italians who identify with eugenics of the Nazi's(forced innoculations, untermesch subhuman classes etc...)
Just focusing on ancient Italian(Paternal R1b-L51+ R1b-Z2103 is found in ancient Latins.) ancestral identity, including, language, culture , legends like the founding of Rome .
Founding of Rome is connected to Aeneas a Trojan.
If I were to go back in time, do I tell one of my distant relatives R1016 from Castel di Decima (Rome) R1b_Z2103+ who might not plot with modern Italians with Yamnaya component and that he is related by language to ancient Italians or Russians or Ukrainians with Yamnaya component? The same argument can be made for R1a-M458 and Yamnaya component in Russians and Ukrainians.
[TABLE="class: outer_border, width: 0"]
[TR]
[TD]
Sample[/TD]
[TD]
Location[/TD]
[TD]
Date[/TD]
[TD]
Haplogroup[/TD]
[/TR]
[TR]
[TD]R1016[/TD]
[TD]Castel di Decima (Rome)[/TD]
[TD="align: center"]900-700 BCE[/TD]
[TD]R1b-Z2103[/TD]
[/TR]
[TR]
[TD]R435[/TD]
[TD]Palestrina Colombella (Praeneste)[/TD]
[TD="align: center"]600-200 BCE[/TD]
[TD]R1b-CTS6389 (Z145)[/TD]
[/TR]
[TR]
[TD]R1021[/TD]
[TD]Boville Ernica (Bovillae - Frosinone)[/TD]
[TD="align: center"]700-600 BCE[/TD]
[TD]R1b-Z2118 (L51)[/TD]
[/TR]
[TR]
[TD]R437[/TD]
[TD]Palestrina Selicata (Praeneste)[/TD]
[TD="align: center"]400-200 BCE[/TD]
[TD]R1b-PR3565 (L2>ZZ56)[/TD]
[/TR]
[TR]
[TD]R850[/TD]
[TD]Ardea[/TD]
[TD="align: center"]800-500 BCE[/TD]
[TD]T1a-L208[/TD]
[/TR]
[TR]
[TD]R851[/TD]
[TD]Ardea[/TD]
[TD="align: center"]800-500 BCE[/TD]
[TD]R1b-FGC29470 (L2>DF90)[/TD]
[/TR]
[/TABLE]