If I take a song, cut it up, and sing over it, my release is valid. If I parody your work, that's my work. If you paint a picture of a building and I go to that spot and take a photograph of that building it is my work.
I can derive all sorts of things, things that I own, from things that others have made.
Fair use is a thing: https://www.copyright.gov/fair-use/
As for talking about the originals, would an artist credit every piece of inspiration they have ever encountered over a lifetime? Publishing a seed seems fine as a nice thing to do, but pointing at the billion pictures that went into the drawing seems silly.
If I take a song, cut it up, and sing over it, my release is valid
"valid", how? You still have to pay royalties to the copyright holder of the original song, and you don't get to claim it as your own.
Until there are a large amount of court cases, the burden of proof is on you to say that this is copyright infringement.
An artist should credit when they are directly taking from another artist. Erasure poems don’t quite work if the poet runs around claiming they created the poem that was being erased.
But more importantly SD allows you to take and use existing copyright works and funny-launder them and pass them off as your own, even though you don’t own the rights to that work. This would be more akin to I take a photograph you made and sell it on a t shirt on red bubble. I don’t actually own the IP to do that with.