The rise of the concept of 'intersectionality', along with other horrible ideas like 'post-modernism, is the fault of the working class.
For more than a century, the Left looked to the working class to replace capitalism with socialism. And in 1917, and for three decades after that, this didn't look like such a crazy idea.
But by the 1960s, it seemed clear that (1) where socialism had been implemented, democracy was crushed. Plus, the Soviet leadership seemed more interested in not going to war with the capitalist powers ... to a young radical in 1968, they were positively stodgy.
And ... the workers in the advanced countries seemed happy to enjoy the fruits of capitalist prosperity -- perhaps with some militant trade union struggles, but not more than that.
The Third World revolutionaries looked more promising, but they showed little interest in the advanced countries, and their strategy -- guerilla war, based in the countryside -- had no relevance for American or European radical youth.
In any case, the prospects of Third World revolution had pretty much petered out by the end of the 70s (although it actually came closer to success in Central America in the 1980s.)
So you had a disappointed academic Left. 'Intersectionality' -- of which the 'woke' phenomenon is the latest manifestation -- is an attempt to find a new agent of radical social change.
And they may be on to something. They may well succeed in bringing down the American social order, by destroying the up-coming generation's faith in the fundamental goodness of their own country, and by opening up the racial fracture lines.
Where the current Left are different from the old Left, is they have nothing to replace that system with. The Temple will be pulled down, but they have no proposal for a new building.
What could arise in America following a general collapse -- perhaps brought on by miilitary humiliation by the Chinese, along with our domestic economic and social problems?
My guess is that the most likely new formation will be something resembling Fascism. This might occur if there was a geographic splintering of the country.
Genuine Fascists have very little support among the white working class now, but we have seen some unpleasant tendrils of it growing, mainly among young white male 'red-pilled' working class youth.
That's why we ought to start talking about an amicable separation between the 'Red' and the 'Blue' populations. A new constitutional arrangement allowing serious federalism -- in effect, two countries, united for defense (the way NORAD works, where the US and Canada run air/space defense jointly), but otherwise free to follow the economic/social arrangements they see fit.