"Quality of life" is nowadays judged in how much cheap plastic shit you can buy and how much you can consoom. You didn't even touch the things I mentioned about forethought and empathy and the ramifications that not being able to produce mental images has on ones ability to empathize with others.

You can Webster the fuck out on me, and quote every sentence all you want, but i cant think of a better word than "imagine" to explain how you could envision without seeing in your minds eye

And thats the thing, they don't imagine, they dont envision. If you think they can magically somehow you're just making shit up. The very phenomena that were talking about is the non-ability to imagine, yet you keep trying to cope and say "nu uh they can somehow but theres not a word for it!!11!!!" At this point you're not making any sense and just trying to cope.