In Rhinoceros, how is the theme related to Nazism?

The political and social conformity that seeks to
eliminate "the other" is the central idea behind Ionesco's play.  In the drama, the
townspeople become rhinos and seek to eliminate all signs of being human.  In an
increasing trend, the people in the town become rhinos only to eliminate any other
voices.  For Berenger, the immediate transformation of the townspeople into rhinos is
unsettling as he is the only one left to stand against a political tide of conformity
and control.  It is this point where one sees the connection to Nazism.  The sweeping
and intense manner in which the townspeople change is reflective of how people became
sympathizers or outright supporters of Nazism.  The political conformity, like the
transformation to Nazism, came out of belief or agreement, political convenience, or the
desire to be like everyone else.  Berenger's painful predicament of being the lone voice
against the rhinos reflects how agonizing it is to be the one person standing against an
overwhelming political current such as the Nazis.