People did the shitty jobs before there was even money or capitalism. I would absolutely work in a sewer if I could also live a comfotable life otherwise and knew I was being genuinely useful to others. And we could prioritize automating said shitty jobs. Why not have shit drones for sewers? Why not have your local library drop you off a Roomba once a week or so to clean your floors for you? Why not aggressively automate mundane bullshit if capital isn't using slave wages as a substitute?

We talk about FALGSC like it's some far-off dream, but we do have the technology now to do a lot of it, if only we could abolish wage labor. We might not be dyson sphering the sun, but we can certainly more equitably distribute the benefits of automation.