Ancient Etruscans were immigrants from Anatolia, or what is now Turkey
That’s right, and just as the ancient sources claimed.
The presence of a language either the same or closely related to Etruscan on the island of Lemnos is a problem for the historians who want to accept to theory that the Etruscans were indigenous to Italy and had not immigrated from the Aegean area. The Lemnians could be colonists from Italy but that seems very improbable--the colonization we know of is mostly from east to west and I don't think there are any parallels of people from the western Mediterranean colonizing a place in the eastern Mediterranean (not until the Roman Empire, at least). Not only Herodotus but other Greek authors accept the idea of "Tyrrhenians" or "Tyrsenians" still being present in the Aegean area in historical times...which would be expected since not all of them would have emigrated to Tuscany.
Volterra is a beautiful place to visit and has one of the best Etruscan museums in existence, along with a gate in the city wall that dates from Etruscan times.