Earlier quoted context omitted.
The libertarian argument would be that if government didn’t regulate working hours the number of hours worked vs the amount of pay would be negotiated by the labor market and you would be free to choose to work fewer hours in exchange for somewhat reduced pay. The socialist counter-argument would be that under such a system people with few employment options or low skills would be forced to work more hours for the sa…
I don't think it's illegal, in any western country, to work part time. So we HAVE the option to negotiate fewer hours, no?
What I think would be helpful is getting away from the notion that working 40 hours a week is somehow 'real work' and anything less is for students and housewives or single mothers who can't work more hours. That's a fact that's also reflected in less-than-proportionate pay which you get with may part-time jobs.
So yes, while it may not be illegal to work part time, it's just not a realistic option for many people.