And people are unemployed, or worse they are employed but at a rate they can’t afford to live, so are one of the tens of thousands of homeless in LA alone. They work 18 hours a day 7 days a week, so are dangerous as they drive to their third job at 3 in the morning which causes a crash which means massive traffic problems all day.
Even if you are a cold blooded Victorian thetr are benefits to keeping your customers alive and with enough free time to buy the crap you peddle.
Yes it is. If you have tasks that cannot be automated, people's labour will have value. It would require AI that is as good as any human, and that is cheaper of course, to eliminate all jobs. And even then rich people may prefer human labour for nostalgic or signalling reasons. Eliminating all jobs is a tall order.