Well, they're not claiming to be effective tools for mental health at the gaming table. They explicitly recognize that the DM and players are not mental health experts and so provide them to most basic of rudimentary tools precisely to avoid having a mental health episode at the gaming table...because neither the DM or the players are likely to be trained mental health professionals.
Other than vague feelings that safety tools are bad, can you point to how safety tools are actually bad or causing gaming culture harm? For me, I don't think talking about safety tools or mental health is bad. I don't think safety tools in use are bad.
If you mean it's bringing out overt cruelty in people who were previously subtly cruel previously, I'd agree. It's one more angle cruel people use to be cruel. That doesn't mean the tools themselves are bad.
Exactly. Safety tools exist to help minimize things like having a panic attack at the table.
Again, safety tools are meant to help prevent mental health episodes at the table. That's the point of them. If your group knows that confined spaces will trigger a mental health episode, they damned well better avoid putting your character in a confined space. That's the point. If your group knows you have trouble with confined spaces and the DM puts your character in a confined space anyway...they're naughty words. You should game with better people.
You keep saying that safety tools and open discussion make things worse. I would like you to point to something outside your feelings on the issue that would suggest you're correct. I don't think open discussion is bad for mental health. I don't think safety tools are bad for mental health.