I think accessibility should be the basic of all website and search engines should promote SEO based on and ON TOP OF accessibility.
Currently, if anything, it's more like websites first and foremost try to be "semantic web", that matters to no one other than Google. Accessibility comes as separate mark-up enhancements, an after thought.
The web should be for humans before it conforms to some standard that only benefits some big corp.
I agree and everyone making or owning a website asked publicly will probably agree too. But it helps to have a resource like this clarifying what we agree on and upcoming laws like the https://bfsg-gesetz.de that enable any visitor to sue indifferent businesses will help to educate web developers and push them to create sites that can be used by all other fellow humans. (i am german hence the long sentence)
Currently, if anything, it's more like websites first and foremost try to be "semantic web", that matters to no one other than Google. Accessibility comes as separate mark-up enhancements, an after thought.
The web should be for humans before it conforms to some standard that only benefits some big corp.