In which world they aren't? Like if you have the option of working throwing paint onto a pice of cloth or taping bananas to walls would you chose to work with literal human shit to your knees and your elbows??
Also see my other comment, only 8% of artist (in the UK) are working class against A FUCKING 100% plumbers being working class.
English is not my first language and I'm no expert in sewers maintenance so substitute whatever trade/job title instead of plumber.
I'm not against this robot quite the opposite. But I'm curious about the reaction when technology 'takes the jobs' of working class people like in this case (or you know last couple centuries) being very different than when it takes the job of artists, journalists, writers...