I unironically believe that the emergence of "political correctness" in America in the 1960s-1980s and it's disappearance as a political force in 1991 and its reemergence as "social justice" in 2012 both stem from "active measures" originating with the KGB/FSB.

See this interview from 1998 ( https://web.archive.org/web/20070627183623/http://www3.cnn.c... ):

"On the other hand -- and this is the other side of the Soviet intelligence, very important: perhaps I would describe it as the heart and soul of the Soviet intelligence -- was subversion. Not intelligence collection, but subversion: active measures to weaken the West, to drive wedges in the Western community alliances of all sorts, particularly NATO, to sow discord among allies, to weaken the United States in the eyes of the people of Europe, Asia, Africa, Latin America, and thus to prepare ground in case the war really occurs. To make America more vulnerable to the anger and distrust of other peoples.

"In that sense, the Soviet intelligence [was] really unparalleled. ... The [KGB] programs -- which would run all sorts of congresses, peace congresses, youth congresses, festivals, women's movements, trade union movements, campaigns against U.S. missiles in Europe, campaigns against neutron weapons, allegations that AIDS ... was invented by the CIA ... all sorts of forgeries and faked material -- [were] targeted at politicians, the academic community, at [the] public at large. ...

"It was really a worldwide campaign, often not only sponsored and funded, but conducted and manipulated by the KGB. And this was again part and parcel of this campaign to weaken [the] military, economic and psychological climate in the West."

The description of movements funded basically fit the entirety of the New Left coalition of the 60s-80s and the current politics of the Extremely Online set typically found on places like reddit, tumblr, 4chan, and twitter.

Given what's been released of the Mitrokhin archive ( https://en.wikipedia.org/wiki/Mitrokhin_Archive ), the Mueller report re: "Russian troll farms" (e.g. the Internet Research Agency), social media disinformation campaigns (e.g. https://help.tumblr.com/hc/en-us/articles/360002280214 ) and pre-Putin-takeover transparency of ex-KGB officers, I don't think it's farfetched to say that Russia and the FSB currently have the means, methods, and motivation to inject any and all corrosive ideologies and misinformation possible in order to paralyze and disintegrate American society.

The Mitrokhin archive (allegedly) and other extant primary aources contains blueprints for these kinds of active measures, including inciting a race war in the US by blowing up a historically Black college and blaming it on right wing militias (Operation PANDORA) and using Soviet media fronts to claim AIDs was made in American-funded biolabs (INFEKTION or VÖRWARTS II):

"We are conducting a series of [active] measures in connection with the appearance in recent years in the USA of a new and dangerous disease, "Acquired Immune Deficiency Syndrome – AIDS"…, and its subsequent, large-scale spread to other countries, including those in Western Europe. The goal of these measures is to create a favorable opinion for us abroad that this disease is the result of secret experiments with a new type of biological weapon by the secret services of the USA and the Pentagon that spun out of control."

This isn't to say that it's impossible that the last decade in America has all been the fruits of American miseducation and inherent civil contradictions coming home to roost, but Occam's Razor and available evidence suggest otherwise--that the Russians currently and historically fund, sow, and amplify any division whatsoever in America that leads to disintegrating social fabric and institutional decline.