I tried coming up with a good interpretation of what he said and I came up empty handed. I'm sure he will write a very helpful 5 part 20000 word blog post explaining exactly what he means.
So far I've come up with this: the AI can supposedly do jobs faster and better than any human, so if we try to stop that, we are destroying economic value and "rent seeking". If a thief goes to my house, steals one of my own drawings, scribbles on it himself to make it "better", and sells it for 5 cents, I shouldn't stop him because I will be destroying the economic value that he is creating. Oh yeah and this leads to fascism for some reason.
And pro-AI people are not rent seeking at all. They just want to transfer the economic value of labor, knowledge, and expertise to whoever happens to own data centers.