But as I just said in my last post, if you treat disability in the Trekverse like race, gender, etc are treated, that basically means everyone's wonderful and accepting and it's never remarked upon at all. That certainly doesn't represent the current experience of the disabled. Of course, we could do so (that's what Melora tried to do on DS9, but it failed due to making the guest character too much of an unsympathetic jerk) but why are we treating ability with a late 21st century lens, when we act like we've moved beyond racism, sexism, and now heterosexism finally in Trek?
You're right in a sense, but exclusion (and stigma) don't just boil down to people being wantonly cruel and yes I do have direct experience of it. They happen in thousands of ways large and small even with the best intentioned people surrounding the individual. They can even come about as a result of those good intentions being misguided. The media is such a powerful tool to open people's eyes to those things and how subtle the stigma can be, subtle to the point the stigmatising party frequently doesn't even realise what they are doing. We shouldn't waste the potential of that tool.
That exclusion is the experience of a world which isn't set up for your needs, the experience of having to learn to adapt to that world, the experience of learning together how to adapt that world to you, the experience of feeling it might be easier just to give up than try to fit in at all, of embarassment, despair, depression, failure, inadequacy, of no longer mattering or being of any consequence except as a burden. This is about the process of coming to terms with a new set of parameters, of new limitations and hopefully realising how they might even be a source of strength.
This is about a world full of people who will treat you that little bit differently, who will view you that little bit differently, who will mistake sympathy for empathy, who will patronise and embarrass you whilst seeing it as charity. These are all sources of exclusion in their own ways, all familiar to people suffering every kind of disability, visible or otherwise, despite being rooted in the sorts of kindness we are used to seeing in Trek.
This is about the experience of people doing exactly what I have pointed out to you, treating the individual as an issue, defined by their disability, of seeking to "fix" that which cannot be fixed,
of seeing you in terms of what you can't do and not what you can. There's a reason so many people choose terms such as "differently abled" rather than carry a label which characterises them by inate failure.
None of that can be shown onscreen if we simply choose to wipe the disability away and leave nothing but the notional concept that someone has a limitation which we fixed because sci fi.