Think of this as Volume 17, Number 11 of A-Clue.com, the online newsletter I've written since 1997. Enjoy.
A crisis for which current thought has no answer creates new stories from the old opposition, which overthrows the old older and is then validated by a new political coalition.
Until this point it's possible to see the failures of the past as emanating from some extremist fringe, some virus within the old order that, once eradicated, makes it viable again. But then the old mainstream goes too far, the new majority identifies the whole of that mainstream as anathema, and a new generation's politics are made solid, the way starch exploding in heated liquid creates a stable pudding.
I saw this a generation ago, in 1973. Liberals, desperate to gain the last possible advantage they could through court action (since courts are the branch of government that most resists change) handed down decisions like Roe vs. Wade. Roe was a great decision for women but, as even feminist lawyer (now justice) Ruth Bader Ginsburg noted, it was a decision that held within it the seeds of a profound backlash, since it went beyond what legislators and voters were willing to do and enshrined abortion as a natural right.