This was an abstract based on modern samples. Ask yourself why Piazza has never published this study. Because he would have been ridiculed. Near Murlo there was an Etruscan estate that was abandoned relatively early, but there is no evidence that there was an Etruscan settlement other than this and that it was in continuity with what then became the medieval village of Murlo. Even archaeologically the premise of Piazza is completely wrong.
No one today thinks that these 4 haplogroups can be proof of a recent migration from Anatolia and of an origin from east of the Etruscans between LBA and IA as told by the Greek historiography.
G2 * -P15. At low-percentage G2a is found throughout Italy and Europe. It was found in medieval remains in a high-level seventh-century tomb in Ergolding, Bavaria, Germany. G2a was very common among the EEF. Even Otzi was G2a.
K2-M70 was renamed T-M184 and was found in the German Neolithic.
J2a1b * -M67 is found throughout Italy and in other parts of Europe. In Italy it is stronger in non-Etruscan areas as shown by other more recent studies.
E3B1-M78. E3B has been renamed E1b1b, and it's even upstream to E-V13, one of the most common E1b1b found in all of Europe.
I understand, but what is important is the place of origin for these haplogroups. So we have to go a little bit before the farming was invented. This is the period during the Pre Pottery Neolithic, around 8000-10000 BCE.
If we consider:
1. The place of origin for E to be in the "Levant" and "North Africa".
2. The place of origin for L and T to be in "Mesopotamia", "Eastern Turkey" and "Western Iran" (and maybe even in "Southern Caucasus").
3. The place of origin for G and J to be in "Southern Caucasus" and "Western Iran" (and maybe even in "Mesopotamia").
It means that in the Neolithic period(after 8000 BCE), these 3 groups formed one group by mixing, and discovered the "Farming".
After this they made migrations to Europe starting in the Neolithic. Cultures like LBK are the groups of people that came within the Neolithic migration from West Asia.
This doesnt mean that after this, there wasnt a second(or third, or more) migration (by the groups of people with the same Neolithic West Asian origin).
Maybe the same group that is often being labeled by the scientists as "Iranian farmers", made migrations to the Italian region during the Bronze and Iron Ages also. The starting point of these secondary migrations doenst have to be Mesopotamia. Maybe people with the same farming-origin from EEF regions(Germany, France, Hungary, etc..), migrated during the Bronze/Iron Age to Italy(after the groups of people from the Steppe regions came into their regions). And at the same time maybe groups of people with the same farming-origin who lived during the Bronze/Iron Ages still in West Asia(Eastern Turkey, Mesopotamia, Western Iran) made migrations to Italy through Western Turkey and Greece?
This all doesnt change the fact that they are the same people from before the Pre Pottery Neolithic period. They only made multiple migrations during multiple periods.