You forgot about #1: The welfare state.
Which govt used to elevate & promote ‘single mothers’ to be worshiped & lauded.
W/o the welfare state, ‘no fault’ could not exist (in size/scope as today)
Regardless of the # of ‘reasons’, the blame can be placed at the feet of one entity 1st & foremost: govt.
Given (illegal) lurch of our govt to Social/Commun-ism, the annihilation of Men/nuclear family+ is an expected outcome *shrug*.
And, of course, that creates dependents who support and expand the welfare state.