Berenson, “the pandemic’s wrongest man,” tweeted on Friday, “Impfung macht frei.”

It’s an unmistakable invocation of “arbeit macht frei” (“work makes you free”), the phrase that appeared at the entrances of Nazi concentration camps.

“Impfung” is German for “vaccination.”

Auschwitz Memorial called out Berenson for the comparison and said, “It’s painful to the memory of Auschwitz and its victims to see this symbol abused and violated. ‘Arbeit macht frei’ became one of the icons of human hatred. Using it in a debate about vaccines that save human lives is a sad symptom of moral and intellectual decline.”