I don't know if "copyright infringement" is really a useful legal construct here. The issue is not so much that a person's work is being duplicated, but that a

I don't know if "copyright infringement" is really a useful legal construct here. The issue is not so much that a person's work is being duplicated, but that a person's work is being used to reduce the value of their labour without consent or compensation. It's probably more under unfair competition. Ultimately, though, this issue probably requires new constructs and laws, which is unlikely to happen. The law is the ultimate expression of the power of the dominant class, and these sorts of AI/ML systems benefit the socially dominant class of business owners and investors.