Desperation. The neo-Marxist identarianism (identity politics) only work on the angry and stupid.
In the 60s & 70s they decided that "working class", were becoming more affluent and they began to think of them selves as "boughoise". As "workers became upper middle class, their "false consciousness" caused them to "vote against their best interests".
The net result was a loss of "class conflict" required by the Marxist revolution. The needed a new wedge to reinvigorate "conflict" based up "identity" rather than class. Instead of workers of the world unite", it became "disaffected minorities of the world unite" resulting in the search for "classes" of victims of capitalism to unite in the "universal brotherhood of socialist utopia" This requires that they punish their "real oppressors", and make the new "bogeyman" as the incumbent majority. Guess who that is?
Racists, homophobes, misogynists, bigots, bitter clingers clinging to their guns and bibles and all those how should be "deplored".