Remember, we are discussing art here, not white collar tech jobs. AI coming for
my job would be unpleasant and devastating, but that, like you said, is an economic problem. That I agree on.
I don't think there is a way to continue this particular branch of this argument without devolving into a debate on the value of human life like a couple of Macedonian philosophers - suffice to say, my point of view is that the work of others has intrinsic value tied to intent, and machines do not have intent.
If no output of humans has intrinsic value, then once machines can approximate humans sufficiently there is no reason for humans to exist - and that is an outcome that I, as a human, reject with all of my being.