I believe that the ancestors of the Etruscans were some of the peoples on ancient Atlantis. I also believe that the Etruscans are the true ancestors of the royal Merovingians. They are tied to the other cultures where art depicts the eyes are slanted and pointed downward.
Mythologically, what ultimately ended those civilizations co-existing was not a natural disaster but such spiteful treatment of each other, due to differences in values, that God, like an angry parent, flooded the region and sank the island.
Online I have seen people claim that Jesus sank the island. Atlantis pre-dates the Biblical Jesus. It is more likely that a former incarnation of his, the bearded god, was responsible for something relating to Atlantis but that the “sinking” was more accurately called “flooding.”