The economics work out just fine. Their actual target business model is replace every knowledge worker. Their thought process is "look at all these people making 150k+, we can do their jobs for 10% of that, think how much money that would be if we had all of it"
Sure, the next step is complete regression to feudalism, but they aren't thinking that far ahead, they just want to take every job in existence that isn't physically turning a proverbial wrench.
Sure, the next step is complete regression to feudalism, but they aren't thinking that far ahead, they just want to take every job in existence that isn't physically turning a proverbial wrench.