Yes. /Especially/ those, so that we can /remember/ how alluring bad ideas can be from the mouths of the charismatic to the ears of the desperate and angry.

So that we can discuss and break down those ideas whenever they arise, because /they fucking will/ no matter how many times they burn themselves to the ground trying to create a false utopia, and no matter how hard we try to forget what they said and did.

So that we don't fall into the trap of pretending we're somehow above falling into that kind of depravity. Because as soon as we start thinking like that? We start thinking that it'll be okay if /we/ do it because we're not /that/ kind of people.

But we are.

The answer to evil cannot be evil, or that is what we will become, irrespective of our intentions and our belief that we are good.

It's good to be exposed to many different ideologies.