Dachau? No, it never became an extermination camp. Hell, I visited the memorial site and know about its history to some extent (though certainly far less than actual historians).
It killed tens of thousands still, especially in the later parts of WW2. But its purpose was still to concentrate enemies of the state and not to exterminate them.
It might happen here, which is why Dachau would be the more apt comparison in my opinion.
But right now, it’s certainly not anything like Auschwitz. The Japanese Internment Camps you had some decades ago weren’t Auschwitzes either.