WotC has done something like that in 2014 where their objective was to seperate sex from gender. Browse to page 33 of the
Basic Rules draft to see how they done it. Similarly they've been trying to seperate race and culture in
Eberron: Rising from the Last War of which the following quotes have been taken:
ORCS AND HALF-ORCS Orcs and half-orcs do feel a certain pull toward violence and anger. But the simple truth is that there is no curse of ruin.
No supernatural power drives orcs to kill. Rather, they are simply victims of the same selfish, violent impulses that corrupt all mortal beings. HALF-ORCS IN THE DWENDALIAN EMPIRE Half-orcs are proud of their heritage, though many are wary of the wrathful curse that supposedly drives them to violence. Those who embrace this gift of fury often enlist in the Righteous Brand to focus their rage against the enemies of the empire.
Other half-orcs reject the idea that they are destined for violence, and rely on faith, meditation, and friendship to live peaceful lives. This is about what you would get to hear in an combined [insert race] Behavioral Biology and Psychology lecture. If they wove it into lore-stories to show how rich [insert race] and culture really is it would have worked.
Instead they are telling in so many words how [insert race] isn't any different to any other race and that just belonging to that race doesn't necessarily follow that all are superstitious halfwits believing in a blood curse or being bloodthirsty murdering monsters. They are a community of individuals sharing race, culture and region, yet they are no collective but diverse individuals with many wonderful talents ... Some are murderous monsters, superstitious halfwits believing in a blood-curse driving them to kill half of [insert race] kind. Which shouldn't be an excuse for the atrocious deeds because a forward thinking society knows that this is just that individual.The majority however consists of peace-loving, flower-picking members who love to dance in the meadows with Drow and Svirfneblin, who in reality are their bestest friends and are well versed in culture, cotoure, all things wordly and divine. In short a race other races just can't but admire!
Other races just can't see how all Orcs and Half-orcs are just the same as members of [insert race]. There is no place in a forward thinking society to slander them ... For in fact, once they get to know their true story, instead of relying what they had learned about them from newspapers and crystal-ball broadcasting series: TRUE ORC CRIMES
Orc invasion of village, everything burned down, 50 died, 2 survivors victim of abduction, one escapee with future of becoming orc slayer. They will find that dacing with [insert race] in a meadow on a warm summer evening, discussing their beliefs, fears, daily struggles, exchanging their knowledge, and sharing their wisdom, the world will turn into a society of equals in which neither race nor culture matters. Rainbows will bloom, and all will live in a flower-power community like one hasn't seen since Sockentwood - A.D. 859 and chant: WE ARE GOOD, WE ARE EQUAL, WE ARE WISE, WE ARE ...
Jokes aside ... WotC designers were going out of their way to introduce real-life concepts to the game without attempting to
hide it. They are forcing this agenda on players and DM. Why? Because vocal minorities not even playing a game, certainly not D&D, starts causing a ruckus until the company falters and starts introducing changes that no one really wanted or asked for.
In short: What they were doing isn't the problem and would even be welcomed. It's just that they did a p**s-poor job that's off-putting to many a player and DM. They are ignoring such changes, and - if nothing else helps, they either homebrew or turn to older source material where all that hasn't been an issue.
