I was discussing this with a friend recently and wondered if some of the themes which came up would be reflected by anyone here, I do think that in some ways the words have become simple and simplistic synomyns for authoritarianism, dictatorship and hate driven terror, the whole idea of Godwining threads and Godwin's law reflects the way that its used in that way and CS Lewis in mere christianity gave the word gentleman as an example of how a word can become unmoored from its original, fairly defined, meaning.
I also think that the majority of people think of those things as historical, from the past and particularly from the second world war era, the regimes that people think of for instance are the axis, particularly Germany and Italy, not Albania (Zog?), Franco's Spain, Peron's Argentina etc. Japan isnt even, usually, considered to be fascist or nazi but something more uniquely Asiatic or Oriental.
What do you all think?