[larsiusprime]

Author here. I’ll grant “gray mirrors” without a fight. (Ideologies that admit to the same facts but one side just doesn’t care; multiply by zero instead of negative one).

Also note in the article I cop to at least one salient example being real

My main point is not to say dark/gray mirrors don’t exist, just that it should never be your first explanation. Your opponent tends to want things for their reasons, not yours, and the better you understand them the better you can oppose them. That’s it.