Data poisoning: how artists are sabotaging AI to take revenge on image generators
(theconversation.com)
they create statistical models based on input data.
Any output from a model trained on material that they don’t have copyright for is a violation of copyright
There's no copyright violation, you said it yourself, any output is just the result of a statistical model and the original art would be under fair use derivative work (If it falls under copyright at all)