As artists who will happily share what we have with others and economically support other artists when possible, your attempt at an argument is sickening.
Art is not a transaction, you talk to the artists, they teach you how things work, you figure out things and you decompose their work, you create, you have joy, you get frustrated, it has meaning, it has purpose, it is the journey in on itself. By learning how an artist tackles a problem you are not literally ripping off their art and grafting it ransom letter-style into some other art with pieces of other artists.
You say you are a demoscener. What the fuck happened to you? To the joy of creation, to seeing the machine come alive, to coming along with friends and have some dude draw some graphics while another friend bangs the tunes and have everyone coalesce into a beautiful piece of work being orchestrated by a machine the public at large forgot? what happened about telling a story, about doing art where the computer is merely the medium? what happened to that? Who hurt you?
Or it did not happen, because as with many people out there, y'all saw the demoscene not as an art, and just as a way to show off and measure your own e-peens for some cash prize while internalizing crunch culture that game publishers oh-so-desperately craved to normalize in the 90s?
The future is here now, old man, and the future gives no shits about slavery-plagiarism machines y'all try to shove down people's throats. People don't want software for the sake of having software.
By mere definition there is no such thing as an ethical LLM or image generator.