I agree that the word 'Nazi' is thrown around too indiscriminately, partly because it is an instantly recognizable reference to unspeakable authoritarian government crime, to ethnic cleansing, and to horrors.

In a way, the CJC and other Jewish organizations have made this possible by insisting (quite rightly) that no one must forget what the Nazis did to the Jews in the 1930s and 40s.

People don't make references to the Rwandan genocide in the same way, although that is much more recent, because no organized groups of Rwandan survivors exist to publicise and remind people of what happened to them.

I suspect there is no way to avoid the use of 'Nazi' in a colloquial style, especially by younger people who are far removed in time from the atrocities of that regime, and thus less able to relate to them, but who nevertheless are made aware of them by education and by the publicising of them by Jewish organisations.

Politicians, however, should know better, and refuse to use the word in a trivial manner.