This is fkn BS.
I started gaming in '82 & ran games, AS A BLACK D&D DM, for white, black & female players in the early 80's.
As a "community", all we want to do is game. We don't care what color or sex the group is. Maybe a few small groups get down with the color 3, but most of us don't give a sh*t about what the SJWs are crying about. It's why I sh*t on them. The SJW lean is all about NONSENSE.
How can Orcs be black people when I had black PCs? How can Gary, Tim & TSR be racist when they never barred non-whites & females from the game? There's an undead species called WIGHTS, who are white-skinned, but old-school D&D is racist? TSR was "exclusive" because they demanded you play "Rules as Written", but the AD&D 1e preface states RAW was reserved for tournament play & how you played at your table was up to the DM/group?
These critics of D&D HAVEN'T READ THE BOOKS. Yet, you wowzers give them credence by even talking about their Twitter screed.
STOP.
On one hand there's something to be said for not even giving them the legitimacy of a response.
On the other, letting it go unchallenged isn't a great play either.
Yeah, but you aren't playing the game correctly. You dismiss them with factual information, THEN CHANGE THE TOPIC. Don't give them the space to respond with their personal attacks. Example:
THEM: Gygax's D&D sucked because he demanded you play by his dumb rules!
ME: Actually, in the AD&D preface, Gygax wrote that RAW was for tournament play, but at your table, the rules are whatever your group preferred. On that note, what do you guys think of THAC0?
CROWD: My group uses a homebrew ruleset for combat.
CROWD: I use THAC0 religiously!
THEM: THAC0 was another example of Gygax's ridiculous dominance over D&D!
ME: Wow! You seem to have a real issue with Gary Gygax. Why? In the rules, he allowed DMs to change the combat rules to fit your group. Did you have a bad DM?
Stuff like that. You can easily defeat the SJW arguments IF YOU KNOW THE BOOKS. Knowledge of the game (D&D) can defeat any SJW BS.
I prefer ignoring them and changing the topic, but if you want to argue with them, at least know how.