Right. I have aphantasia and I've never felt bad about it. Maybe confused a few times, but that happens a lot anyway for any number of reasons.
I posit, without evidence, that the people who feel "confusion, frustration, shame, and inadequacy" about something like aphantasia are simply attention-seekers. If it wasn't for lack of mental imagery, it would be for something else.
For me, learning that normal people go about their days constantly hallucinating had the opposite effect. I think it could partly explain some problems in society, e.g. people's susceptibility to advertising.
I agree with you as an adult with aphantasia, but I think it's a relatively common experience as an undiagnosed kid in grade school etc.
Hmm, agreeing that the pathologization of aphantasia is distasteful but then immediately positing that people who might feel shame and inadequacy about having it must be "simply attention-seekers" seems counterproductive. Not treating aphantasia as a disease and also acknowledging that people may suffer mental illness triggered by it are not mutually exclusive.