Wouldn't having an omnibenevolent AI providing for everyone's needs free everyone from having to be a laborer, so anyone can choose to be one thing one day and another thing another day? I see my passage and yours working together.

From what I understand, Marx didn't see communism as subverting capitalism, but as the end result of capitalism. He just wanted to hasten the process along towards an outcome which he saw as already predetermined by economic forces.