Re: Time to put a stop to this
If these image generators are creating brand new images, then the raw output can be trivially processed to create a derivative work that is copyright to the person creating it.
By never releasing a public domain image only the copyrighted images would be accessible, and those come under existing law anyway.
(If the images are drawing on specific elements of existing images then it's all rather more complicated - much as the AI code completion efforts are finding.)