I’ve worked in and run my own game companies. The request for a slider isn’t based in any kind of misunderstanding about how it would be implemented.
For your example in tetris it would be a global multiplier on the speed. The speed would still increase by the same rate but the actual speed is always multiplied by some constant.
The Tetris speed is already multiplied by a constant anyway even if the difficulty isn’t exposed. And this constant has to be picked by a designer. All I’m asking for is to expose it with a slider. There is pretty much always a constant like this in any game
Who decided that only things that are public services need to be accessible? Why is everyone latched onto that like it’s a given.
If your a dev and you have x hits to kill thing x and you don’t put in a tiny bit of extra effort to multiply that by a difficulty slider “because of art” then I’m going to say you’re a bit of a dick.
Games are barely art anyway. Most are just a toy that you play with for a bit to waste some time
For a game where difficulty is based on reaction time then it is accessibility. Your whole page of arguments is based on that ableist assumption and doesn’t hold up.
Food and cafe is just an extreme example, you don’t have to discredit the idea based on the specifics of a cafe. It was supposed to make you think about the problem from the perspective of someone who feels excluded which you didn’t do. You just used to to further your agenda with emotive language like “bad and damaging”. It’s a little bit pathetic actually when all people are asking for is a slider
There are plenty of places that aren’t essential that are accessible just to be inclusive. A theatre for example.
I’m not even disabled and I struggle with games without a difficulty slider. I can’t imagine to be actually disabled and excluded just because someone’s ego prevents them from adding a single slider to their game.