No, they're not missing the point. We all agree that mobile should have readability, it's just that the reality is we have no way to enforce it. Also, Firefox extensions like "Automatic Reader View" allow you to whitelist websites and force Firefox Reader view by default, as an attempt to create a plage more like what you are looking for without needing top down force that it would require to fix the issue (we all know chrome won't do it)
Us? Are you okay? I will not deny there is a lot of erasure of people who are not traditionally attractive, but that is a different intersection. I'm a transwoman who is fat and cannot lose my beard, but I'm still a transwoman and they can't take that from me.
Which proton are you using if you're using it? A current one may be breaking it? Also, are you on Wayland or X11?