Beringia or Atlantis?

The standard model of New World migration still stands - people left Asia, crossed the Beringia Land Bridge, and populated the Americas as they headed south.

According to National Geographic, DNA sequence studies show:

... humans heading east after leaving Asia about 40,000 years ago were blocked by two huge glaciers that met at present-day Alaska.

With no way forward, the humans settled on the land bridge, called Beringia, that connected Asia and North America.

There they remained for 20,000 years.

It's a bit of a stretch, but perhaps either:

a) They didn't stay in Beringia, but established Atlantis instead
b) Beringia is the location of Atlantis

I figure there have been few or none undersea explorations in this area that could reveal an ancient advanced civilization. And Plato's description of Atlantis kinda fits:

...you might pass to the whole of the opposite continent which surrounded the true ocean ...and the surrounding land may be most truly called a boundless continent

If Beringia meant that Asia and America were a single continent, and given that Beringia is directly opposite Europe, Plato's words could almost be describing this area.

It is not a new idea that the Americas were founded by refugees from Atlantis. So maybe speculative ideas and scientifc fact can meet in the middle - Beringia was Atlantis??