They are humans and must be seen as such. The crazy part is that it's humans like you and me that decide to do terrible things.

After ww2 there was a question whether fascism is something specific to Germans, they have an unusual number of psychopaths, etc.

And the conclusion was that it's just normal people doing their everyday work. Be it accounting or operating a gas chamber.

Slip into fascism is gradual and no country is immune from that.