Earlier quoted context omitted.
Just because it generates you an image like Biden still does not make it a derivative either. You can draw Biden yourself if you're talented and it's not considered a derivative of anything.
Correction: if you draw a copy of Biden and it happens to overlap enough with someone’s copyright of a drawing or image of Biden, you did create a derivative (whether you knew it or not).
It's bad news for art websites themselves if that's the case...