Two comments here.

First, "AI is thereby incapable" is a hypothesis, not a fact - how would you prove that you have to "live" to produce art? You might feel this way, you may suggest some correlations here - but can you really prove that?

Second, I don't see impossibility for AI to be - to various degrees - an agent to the world. I think that's already happening actually - they are interacting with world even today, in some limited sense, through our computers and networks, and - today - not many of them actually "learn" from those interactions. But we're in the early days of this - I suspect.