"I simply don't believe" is not a great argument, when the previous car insurance and painting analogies proved to me that you can conjure up a hypothetical interest of a blind person about anything.
These aren’t hypothetical! Blind people really are interested in both these things, as you can easily find out by googling — or just using your common sense.
Like OP, you’re illustrating exactly why we need the ADA. People often have wildly inaccurate perceptions about what people with visual disabilities can or can’t do and about what they may or may not be interested in. If “I don’t think blind people would be into this” were a valid excuse, then virtually nothing would be accessible in practice.
As the OP has already demonstrated that they have mistaken ideas about blind people, I’m not willing to take their word for it that they have some kind of special product which couldn’t possibly be of interest to the visually impaired. They are free to reveal what they actually sell, if they think they have a slam dunk case.
It's a perfectly valid complaint from someone that sells a product which is generally not interesting to blind people (you seem to think this is an impossibility, or that one edge case outlier invalidates this reality), to not want to do this if it will bring no new business and make no-one's life easier.
But if you went around saying that really it isn't important to fix vulns since they don't affect that many people you'd be rightly raked over the coals.
"It is expensive" isn't an excuse.
I don't know why you keep referring to "edge cases" and "outliers". The two actual examples that the OP has given do not meet this description.
I'm really sick of the argument by outlier where a generally true statement is countered by an outlier case as though that invalidates the whole statement.
Firmly agree. It's amazing to see how many cling to the view that people with disabilities are this alien group of "others" that think differently and are probably only interested in things for disabled people.
Like, how can anyone state that "blind people aren't interested in this" seriously? Like there exists a bullet list of things that blind people like.