Agree. Anyone should be allowed to disable generative AI features on their device, especially a general computing device such as Mac. It's not some hysterical outburst about the industry to be upset when you can't do that, especially when the option used to exist but was removed.
If you honestly can't see the blatant and absolute anti-AI rhetoric in his post (I provided a citation) and the banners, then there really is no reason to continue this discussion.
There's absolutely nothing wrong with being against AI. Rejecting his argument that he should be able to control his computer because of that is very silly.