I hope you're young because this level of naivety in an older person would be very concerning. As others have pointed out, the real world does not work based on rationality, and assuming it does will lead to some very bad decisions.
I do not know about this particular fellow, but I think at least some part of the current generation of older people have similar views, much more than in the previous centuries. Relative prosperity in recent times has ensured that many of these dimwits now have the opportunity to survive and now that they are in positions of power or influence.
Recommending that groups take revenge on one another for past behavior and wrapping it in some Orwellian term like "Asymmetric Behavior" is neither rational nor reasonable. It's immoral.
Sure there's a small delta between what you say and what others claim you say. Unless they verbatim repeat what you say there will always be a delta.
Don't pretend to don't understand the point they are making and address it.