For once, it doesn't seem that there was a single piece of legislation passed in the dead of night after a false flag. Rather, divorce laws were widely varied, then evolved to their "on demand" status over a long period of time.

I would hasten to add that I suspect the Cultural Engineers were the pressure behind this course, but were up against so much backpressure of good sense and societal stability that it took them many decades.

In any case, this podcast episode is a fairly entertaining narrative of a time and place representing an inflection point in the issue, and it's been all downhill after that:

99% Invisible: Episode 559 The Six-Week Cure (11/5/2023)

And so in 1931, Nevada passed legislation that solidified Reno once and for all as the divorce capital of the world: they changed the residency requirement, which had been six months just a few years before, to six weeks.... In the same legislative session that lowered Reno’s residency to an unheard of six weeks, the state of Nevada also legalized wide-open gambling.

PS: If it seems the podcast leans liberal, it does. This is a rebroadcast from years ago and it is insufferably woke now.