We need a Butlerian Jihad because we need future wage earners to exist. If people don't have jobs, who is buying the goods and services? AI job displacement impoverishes everyone.
When you travel around the world, you often see jobs that exist in one country but not in another, for multiple reasons but including automation or self-serve, etc.
It is impossible for us to be confident about what specific jobs (or activities) humans will do 15+ years, but we also know that people need a way to exchange something of value to get something of value and that jobs provide a sense of purpose that people might otherwise not know how to fill.