Luckily capitalism solves that bit for them. Just gradually automate jobs so people can't make a living and they'll slowly die off in the gutter bit by bit. The slower it, is the less chance of a revolt.
To paraphrase that old quote:
>First they automated the artists, and I did not speak out because I was not an artist.
>Then they automated the writers, and I did not speak out because I was not a writer.
>Then they automated the office workers, and I did not speak out because I was not an office worker.
>Then they automated me and there was no one left to speak for me.