not blasting the games themselves since as you say they really do try to put in historical context, but do you really find it wild that the games that let you play as nazi germany and win WW2, or play as (insert favorite country with favorite flavor of nationalism here) and colonize more of the world than they originally did IRL, or prevent the fall of (favorite flavor of DEUS VULT nation here) has a huge right-wing playerbase?
they're gonna take fascism/slavery/theocracy makes the game harder and take that as an epic gamer challenge and completely bypass any possible lesson of the game with the same vigor as someone approaching a SL1 playthrough of a souls game
the AI nations in my civ games be like: