The irony is that virtue-signalling (which your comment certainly is) is a shared identity declaration. Which is a part of the same inherent human predisposition to form groups which we call "tribalism" when we like to don't like it.

That others have learned a different lesson from history compared to your beliefs does not mean that they are ignorant of it.

I will stake the claim, as an engineer never having studied sociology, that in group favoritism is the (only) stable political arrangement by and large… and further, the preservation of any culture necessitates discrimination of some sort.