hmm...
I'm afraid I disagree that professional pride is sufficient motivation as shown by the raft of needlessly inaccessible websites out there. Nor is the "spending power of disabled people" a valid argument. To misquote a famous Irishman "He who first turns to legislation admits that all other ideas have run out".
Bear in mind we are talking about websites offering goods and services and the freedom to needlessly discriminate against disabled people is not one I recognise (I work in the charity sector so, I'm afraid, I do have a bit of an axe to grind).
Regardless I think we need to agree to disagree. There are many more valid comments being made in this forum which I would hate to detract from and I think any argument should end at the first invocation of 'Godwin's Law' (I have some very nice German friends, none of whom display an "appetite for coercion").
Fare thee well Suboptimal and please feel free to have the last word,