That's not what I get from reading it. You could give that a try.
Here's an interesting bit:
> The A.C.L.U. of Virginia argued that this violated the free speech rights of the far-right groups and won, preserving the right for the group to parade downtown. With too few police officers who reacted too passively, the demonstration turned ugly and violent; in addition to fistfights, the far right loosed anti-Semitic and racist chants and a right-wing demonstrator plowed his car into counterprotesters, killing a woman. Dozens were injured in the tumult.
> Revulsion swelled within the A.C.L.U., and many assailed its executive director, Anthony Romero, and legal director, Mr. Cole, as privileged and clueless. The A.C.L.U. unfurled new guidelines that suggested lawyers should balance taking a free speech case representing right-wing groups whose “values are contrary to our values” against the potential such a case might give “offense to marginalized groups.”
That's not political correctness, that's ideals colliding head-on with the grim reality. The real world isn't a Disney movie, and doing the "right thing" doesn't magically make everything work out positively.
So the Virginia ACLU defended the freedom of speech of Nazis, and the Nazis did what Nazis do and ran over people they didn't like, killing a woman. At that point a lot of people started asking themselves "Are we really being a positive influence?". And a conflict began.
I see this as a conflict between deontology and consequentialism. Deontology says "free speech was defended, the outcome doesn't matter. Let's keep going". But it turns out that deontology isn't that great of a fit for the real world, because people do care about consequences very intensely. Few have the iron-clad nerve needed to say "an innocent died as the consequence of my/my group's actions, and nevertheless I wouldn't change a thing".
I think the major difference now vs the 70s is that news spread far wider, and consequences are communicated far better and more viscerally.