Automation would increase productivity and replace workers in manual jobs, so we wouldn’t have to work as much.
Here we are in 2024 and we’re still working at least eight hours a day. We’re actually afraid of automation because it’ll take away our opportunity to work eight hours a day so we don’t starve.
Productivity has also increased exponentially (note: may not actually be exponential, just using the word as a figure of speech, but a math nerd can correct my use of scale here if they want), but has the average worker benefitted as much as they should have? Of course not 
Reminds me of when I was a lib making software for construction workers to make their jobs easier on-site. It felt great for the first 2 months until I realized that it only helped the construction company
Workers were way more productive but they still got paid the exact same amount hourly, and that extra production of value per hour went straight to the people that signed the building contracts