Can you source this claim? You didn't provide any data point for that. You've claimed a lot of things that you just know and seem to take offense to that being challenged.
In fact, UC Berkeley case is the only data point I've seen from you here; which feels sparse given the blanket statements you've made about the intentions of various groups of people. You won't even say what product you are selling that you know for a fact that blind people are not interested in at all.
Can you also provide a data point on the UC Berkeley lawsuit being frivolous? What are you basing that on?
> "The point is not that there are literally zero blind people buying paintings, the point is that they are very very far from the target audience and hence it's not worth investing a significant effort to cater to those people."
That depends on how much value you place on following the law.
> "People from Africa are not my target market either and I make zero effort to make sure the site is accessible there. Am I now a racist too?"
Could you please stop inventing arguments to rebut, because it's not really helpful. We're talking about ADA here, not whatever you're making up here.