The dogma of the Death Cult requires running down and destroying the culture that is seeks to conquer. This is no different for hobby subcultures; by looking at the micro, we can identify the pattern at work and apply it to the macro level of operation because culture is fractal in its nature.
What is going on here? By seizing control of D&D, and steadily changing what D&D is and how it works, they are normalizing their dogma and othering the former culture in exactly the same way that the ancient world would go about this process with regard to religious practices: the mythology of the conquered is changed to denigrate it as weak and low-status as a flex while portraying the mythology of the conquerer as superior and high-status.
What are they lying to you--to your children--about in the schools? On TV? In feature films? On streaming services? Videogames? Why are you paying them to shit on you and yours? Narrative Warfare is real, it's been going on a long time, and much of what you were taught about the present and the past is a bald-faced lie. And that includes what they say about religion and God. Fix that, for these are flesh-and-blood people with names and addresses, and Empire falls.