"Free" them? They need that work in order to survive, mostly. They were "free" before having that menial job and that freedom didn't seem to help turn them into software engineers or nurses before...
https://en.wikipedia.org/wiki/Hurrying
https://thoroglove.wordpress.com/2015/03/12/trappers-hurrier...
Simply put: if a job is so repetitive that it can be automated out of existence, it's in the interest of humanity overall that it should be.
Quite a different way of framing it than your original comment. Here you tout how it's good for "humanity" in general. Before you were touting how this is good for the people being put out of work.