It's the same reason they race and gender swap beloved fictional characters instead of creating new non-white and female characters: the goal is destruction of white and male characters and stories, not the expansion of non-white and female stories. Similarly, white and male histories are under attack.
It's the same reason they race and gender swap beloved fictional characters instead of creating new non-white and female characters: the goal is destruction of white and male characters and stories, not the expansion of non-white and female stories. Similarly, white and male histories are under attack.