I guess we will have to agree to disagree. I believe that the child labor laws and the monopoly laws were past because SOME businesses could not police themselves.
Here's the "police":
Congress has created so many laws that virtually every person is assured of breaking more than just traffic laws. Surely with all this supposed lawlessness people and society should have long ago run head long into destruction. But it has not.
Instead, people and society have progressively prospered. Doing so despite politicians creating on average, 3,000 new laws each year which self-serving alphabet-agency bureaucrats implement/utilize to justify their usurped power and unearned paychecks. They both proclaim from on high -- with complicit endorsement from the media and academia -- that all those laws are "must-have" laws to thwart people and society from running headlong into self-destruction.
Again, despite not having this year's 3,000 must-have laws people and society increased prosperity for years and decades prior. How can it be that suddenly the people and the society they form has managed to be so prosperous for so long but suddenly they will run such great risk of destroying their self-created prosperity? Three hundred new laws each year is overkill, but 3,000 is, well, it's insane.