The point of it is very specifically against treating issues as individual or in isolation. It directly opposes addressing axises of oppression in isolation. That is directly from the horse's mouth. That is wholly different from the very real thing, that predates all of this nonsense, of acknowledging that we have our separate, unique experiences with the struggle. We do not, and have never, needed Intersectionality for that. Intersectionality is the exact opposite of finding solutions, it's the creation of problems. There isn't an ability to find a solution for a group when the individual is meant to be, fundamentally, unique and distinguishable from it. It manifests as hierarchical and creates friction thereby denying all efforts to generate consensus.
the interconnected nature of social categorizations such as race, class, and gender as they apply to a given individual or group, regarded as creating overlapping and interdependent systems of discrimination or disadvantage.
"through an awareness of intersectionality, we can better acknowledge and ground the differences among us"
That is the literal definition of intersectionality. Whatever you're talking about vs what it actually is are two different things. People are people and there will always be some who fuck the concept of something up. But that doesn't change what the actual concept and idea is just because some misconstrue it. You're speaking to the perceived. And sadly...some do need it in order to see that Black men and Black women have specific things that affect us in different ways with the same results.