A word I've come to distrust - intersectionality.

Here's why -

https://www.counterpunch.org/2018/09/14/set-theory-of-the-left/

For example, a common refrain among the intersectionalist left is that Trump won the 2016 election due to the racism of white people, working-class whites in particular, and therefore the set we call working-class whites has nothing to bring to the intersection, so to speak. It can be ignored as a potential ally in the struggle against neoliberalism.   However, the set of all working-class white people is not the same as what we find at the intersection of the set of working-class white people and the set of racists. By conflating the two sets, the intersectionalists are

1) excluding a large set of people that have been crushed by neoliberalism and
2) committing themselves to a much diminished coalition.

The question is:  Why is this idea of intersectionality, which is logically flawed on its very face, so prevalent among various leftist factions and “progressives”?  There are two likely possibilities, in my view:

1) The Left is being deliberately fractured by government and corporate policies or
2) The Left is exhibiting a sort of schizophrenic break with reality induced by both a perpetual inability to obtain economic and social relief from neoliberalism and the election of Donald Trump.