If AI generated content is not copyrightable then can it be a copyright violation?

Like if you took all of Taylor Swift’s songs, voice, lyrics and fed them in to a ML algorithm to produce new songs that were Taylor Swift like. She couldn’t do that and release those as hers under copyright. So could she enforce her copyright on others? 

If you claimed the resulting work was satire, would it be then allowed under fair use?

What if you never used her voice and content directly but instead trained the ML using music from coverbands?