I don't think those are proof of anything. The original creator of Dark Sun hypothetizes that WotC wouldn't touch the setting for X, Y and Z reasons, but doesn't know, and WotC wouldn't say. (Compare to all the people who say Movie X "could never be made today," ignoring how many movies of that type are still being made.)
You previously stated that you thought people were saying that "even the mention of the topic will be deemed offensive, even when in a negative light" without it actually occuring (where "the topic" is shorthand for things like "slavery or genocide or fascism or religious fanaticism"), to the point of it being disingenuous.
I'm pointing out that this does in fact occur, and pointing that out is in no way disingenuous.
For instance, Timothy Brown stated in the first link that:
"The old saying is there's no such thing as bad publicity," he says. "Well, there is bad publicity today, and that would be bad publicity. I think, for the most part, you'd spend all your time apologizing and complaining and not making the game. It'd be very difficult. Very difficult."
...which is an understandable sentiment, given that the author of the article apparently feels no compunctions about generalizing how:
Slavery is commonplace on Athas and, though it is not race-based, some TTRPG players feel that such an abhorrent practice has no place in the hobby.
So the premise that some people want it out of the hobby
entirely, regardless of context, seems pretty well established.
Follow that up with the second link, which opens with a note saying:
When it was originally published, this article did not acknowledge the elements of bioessentialism and racism present in both the original Dark Sun and Red Dawn, notably the setting’s handling of slavery. Dicebreaker absolutely does not support these views or any product that embodies them. We’re sorry for any harm caused by this article, and will address any such problematic elements in any future coverage.
Given that this seems to operate from a premise that the mere
presence of bioessentialism and racism are things that need to be apologized for, in that not acknowledging their presence (even if presented as something bad, as they were in Dark Sun) causes harm. So that seems to support the idea that their inclusion is harmful in-and-of itself.
The third link isn't something that can be dismissed either, as the anonymous letter received a personal response from Erik Mona, which suggests that he agrees with the idea that even mentioning slavery in the context of it having been declared illegal and only being something that bad guys do is not acceptable:
Then there’s Erik Mona and Absalom. There are 126 references to slaves and slavery in the 402 pages of Absalom. Some of them are just recounting history. Some of them are references to abolition and aiding free people. Several of them are graphic descriptions of “illegal” slavery, human trafficking, prison abuse, organized crime and all the various ways that Absalom tries to have it both ways. What a [expletive deleted] slap in the face.
So even when it's presented as an inherently bad thing, it's unacceptable.
Given that, it seems like we can safely dispel the notion that there's a contingent of gamers who want these offensive topics removed from the gaming scene entirely, even when they're unambiguously presented as bad things. To say that this sentiment doesn't exist, and doesn't have traction (e.g. Paizo's acquiescence to that open letter), can therefore be dismissed as an argument.
