Do Libertarians idolize the good ol' days of 12-hour-work days & no labour regulations?

[KM]

Libertarians claim the US was great prior to the introduction of social programs. How great it must have been for slavery to exist, for people to work 12 hour days & for there for to no safety regulations. The desperate would be exploited but because of their economic necessity would continue to work in unfavorable conditions. This was the reality prior to the introduction of all those horrible social programs. Do Libertarians idolize those days?
mrs manners: Employers are obligated to pay time and a half after working 40 hours week (it might vary in different states ). Thus it prevents over-exploitation as businesses would be inclined to pay more on overtime. Libertarians claim that there should be no regulations & businesses should be free to do what they want
mrs manners: If you're making a salary, chances are you have perks & benefits that others would not have. Plus you likely make a living wage. I'm talking low-skilled labour or semi-skilled labour that is paid hourly. Often they would be exploited if there were no regulations, and likely they would work more than eight hours a day.