While this is the correct analysis of automation in terms of exchange values, this misses the fact that automation also reduces the socially necessary labor-time to produce the same commodity. Overall it probably still benefits the capitalist despite the falling rate of profit, because the use value of that profit rises proportionally to the fall in its exchange value, while the exposure to risks associated with employing labor decreases.

I highly doubt this significantly changes the calculus on AI though. It improves productivity somewhat in a few white-collar fields. It will not replace most blue-collar workers any time soon, even with the technological advancements in robotics we see in China. I think the more likely explanation for the phenomena in OC is the combination of increasingly relying on exploiting immigrants and workers of the global south, and AI fits in there as a tool for surveillance of the working class.