This is a question that not enough people ask themselves - the answer in most cases is yes. That's how you get from the Weimar Republic to sending your neighbours to be gassed in chambers. The answer to this question is 'yes' and if you have made peace with that fact, you then have to focus on what constitutes 'the right conditions' and ensure society never goes down that route. This is my main problem with the current band of progressives, they are so convinced of their moral superiority that they have zero introspection as to what they are really like. Everyone would like to think 'not me' - but that's the rub, unless you think about why it IS you, then you're increasing the chances of enacting great suffering into the world. That's just my Penguiny two-cents off the bat. :o)