All three studies seem to support the history written by Herodotus. He wrote that Lydia, on the southern coast of Turkey, suffered from a long-running famine. After 18 years, the Lydian king divided the population by lot and sent half under the leadership of his son Tyrrhenus to look for a better life.
The Tyrrhenians sailed from Smyrna, now Izmir, and eventually landed at Umbria, where they established a prosperous and rather liberated society, Herodotus wrote in the 5th century BC.
Linguist Rex Wallace of the University of Massachusetts also points out that the Etruscan language is definitely not of Indo-European origin
If they're from southern Turkey, and they were already advanced by 750BC, I would guess they're related to ancient Babylonians or one of the other mesopotanian cultures.
The ancestors of Italians are mostly Indo-European speakers (e.g. Italic peoples such as the Latins, Umbrians, Samnites, Oscans, Sicels and Adriatic Veneti, as well as Celts in the north and Iapygians and Greeks in the south) and pre-Indo-European speakers (the Etruscans and Rhaetians in mainland Italy, Sicani and ...
The study suggests the vast majority of immigrants to Rome came from the East. Of 48 individuals sampled from this period, only two showed strong genetic ties to Europe. Another two had strong North African ancestry. The rest had ancestry connecting them to Greece, Syria, Lebanon, and other places in the Eastern Mediterranean and Middle East.
Latins (Italic tribe)
The Latins (Latin: Latini), sometimes known as the Latians, were an Italic tribe which included the early inhabitants of the city of Rome. ...
The Latins were an Indo-European-speaking people who probably migrated into the Italian Peninsula during the late Bronze Age (1200–900 BC).
According to tradition, on April 21, 753 B.C., Romulus and his twin brother, Remus, found Rome.
Our results reveal a shared Mediterranean genetic continuity, extending from Sicily to Cyprus, where Southern Italian populations appear genetically closer to Greek-speaking islands than to continental Greece.
We find Sardinian samples show elevated levels of shared ancestry with Basque individuals, especially samples from the more historically isolated regions of Sardinia.
It seems Sardinians are the neolithic Europeans, before arrival of indo-aryans.
^these are the europeans without any indo-aryan/middle eastern influence.
Blue eyed europeans are indo-aryans?
According to the wiki, modern Italians near Rome don't have significant Germanic influence. They're the similar mix of Latins, middle easterners, and Greeks as it was during late antiquity.
Sardinian people were not only on Sardinia Island but also on Italian Peninsula during Neolithic age but later on they were replaced by Indo-Europeans.