WotC doesn't have the responsibility to create any particular form of content.
WotC is a small but growing subsidary of a major corporation, Hasbro, which has a fiscal responsibility to its shareholders to turn a profit.
If we the consumers want a particular type of content, such as more socially conscious material, then our purchase habits, and our voices on what we care about will drive the company to produce that type of content. And likewise, we have the ability to stop production and distribution of socially upsetting content if we so demand it - if it becomes big enough of a concern for Hasbro's bottom line.
What WE care about as a gaming community matters. Our ability to hold producers accountable, to buy or not to buy, to demand change and protest, these things can have real effects for the positive.
But they are not the same as censorship in any way. If DM's Guild no longer sells Oriental Adventures on its digital marketspace, that doesn't mean that they're coming knocking on my door to take my old copy of the book (that I got secondhand). I can choose to destroy it myself as a statement, or I can choose to treat it as a relic of the past in its context. But that doesn't mean other people need to have that relic easily available to them. Publishers do not need to keep printing books. Most books stop printing in short order because it's no longer profitable to do so.
If someone was saying, go tear this book out of the Library of Congress (or worse, attempt to destroy such a repository of knowledge of the history of Humanity, like they did with the Library of Alexandria), then we might have a problem.
But I think there's room for WotC to put disclaimers over some products, and to outright stop selling other products. Disney seems to understand that quite well: they're going to put disclaimers over "Saludos Amigos" on D+, but they're not going give "Song of the South" a platform to wedge its toxicity into the minds of unassuming viewers. That's their perogative as a business. They realised long ago that it didn't make business sense to keep publishing the film. Does that make them a changed company from the one that made the film? Probably not, despite any apologies made in context of the removal. But in my opinion - and the opinion of enough people who consume their products - they had a moral responsibility to stop sharing that film. That said, inevitably, someone will start distributing the film legally come 2041, when the copyright on the film expires. Until then, Disney can simultaneously refuse to take it out of the infamous Disney Vault (Disney Walt?), and also prevent anyone from attempting to sell or recreate or distribute the film (say, on YouTube or some such place). Circling back to WotC by comparison, they do not have to sell us OA. I would prefer they didn't.
I still want to see positive adventure stories in the worlds of D&D told of people and lands that take inspiration from parts of the world that are not Western Europe, 800-1600 CE. But I won't buy such a product if it doesn't lift up minority authors to be able to tell their own stories. This hobby is too white. It was too male for a long time, but that's changing. It's changing because certain gates into the fandom have been torn down, wittingly or not. But high-selling content creators are still overwhelmingly white and male. I know there are great designers of content who do not fit that profile, but are overlooked because of implicit and explicit biases, because of gatekeeping, and because of carryover and ongoing corporate practices instituted in a time that this wasn't a concern to the shareholders. We have a chance now to tear down those gates and fences, because the corporate shareholders are listening carefully with their wallets. They'll want to give us little treats to placate us from keeping up the pressure. It's our job to take what we can get but then pressure for more, until we actually reach a society where no people are more equal than others, and when we get there, it's our job to protect that equality from the forces that say "it's working so we don't need it anymore."