I would argue that the human element in music is not an important contributor towards the enjoyment of music for exactly 100% of people.

Humans just biologically enjoy rhythmic sounds. We don't care who makes it, we don't care how it is performed live. Those things are just hijacking emotional memory in heightened moments, but that is completely separate from the general natural enjoyment of music.

AI music simply drives the same point home that listening to random music does when you are without a care for lyrics or artists (often, and everyone).

Your point is asinine. You love a hell of a lot of music besides what you attach to live performance. Everyone does. You do not care about the human component.

Unless you want to lie and claim you're some musical purist, this argument is shallow thinking and nothing more.

Exactly. Gorillaz was literally the cartoon characters in my mind for the entirety of my childhood, before I knew who Damon Albarn was.

I would counter-argue that you're accusing the other party of exactly the shallow thinking you're guilty of - even worse, you cannot concieve of a thing, so you confidently state thing does not exist and the other party is at best a liar. One only has to have a cursory knowledge of performances on, say, pianos, to know that who and how plays an established piece was always a big deal.