I find it all very interesting. What makes people unable to enjoy text games, being so reliant on media?You know, once upon a time porn took a very long time to load with a dial up, we're talking like 3-5 minutes for static .jpg pictures, let alone video. Stories and erotica were always popular, even back when you had playboy/penthouse the stories were STILL such a turn on. I think it speaks of how generations are changing that you can't imagine and enjoy text without visual help. I mean on the one hand, its nice that technology is that advanced and catering to your wants, on the other, its just kind of sad you're unable to appreciate a well written story.
On another note, not everyone is a graphics wizard/has access to assets, but still has an idea. maybe someday they will get those things, but everyone starts somewhere. Just unfortunate not everyone has access to media/art to throw into their games, but perhaps if it gets enough support that changes over time.
It's either: a) weak or non-existing visual imagination(aphantasia, or untrained), b) simply not used to the idea, not open towards it.
I think it's the second situation. Although the visual aspect is a turn on for me when reading, a huge part of it is also the situations, the expectation, the interactions and the actios. Often what excites me the most isn't a particular scene I'm imagining, but what's happening during it, the emotion I imagine the characters having, the overall "theme" of the scene, the implications, the risks, the rewards, the rarity, sexuality is quite abstract and dualistic at times.
Anyway, no matter what reason it is the practical thing to do if a person wants to enjoy text games is to read a lot, read until you are able to enjoy reading. It will naturally transfer your interests to erotica once worlds inside books appear more real to you.