The problem isn't part-time hours, which are ideal and actually more in-line with workers' actual labor time. The problem is that companies refuse (and workers refuse to make them) pay high-enough wages.

The problem isn't wages, it's that part time jobs don't come with benefits. Health insurance being tied to employment is maybe the second biggest problem in this country and you almost never see anyone even talk about it. Ever wonder why you see so few disabled start up founders?

Part-time jobs shouldn't come with benefits. Neither should full-time jobs. As you said, "Health insurance being tied to employment is [one of the] biggest problems in this country."

People should be getting paid money for their work, and generally more than they are now.