I actually really like what I do at my job. The problem isn’t really the work but the duration. 40 hours a week is way too much and it’s pretty soul crushing. If I could work 2/3 the amount I currently do that would make me a much happier person.
According to Pew at least [1], about 85% of workers are "satisfied or very satisfied" with their jobs, with 49% being "very satisfied". That still leaves a lot of unsatisfied people, but there is also a lot of people relatively happy with their current arrangement.
The issue isn’t one of work but one of many of the jobs we currently have.