That's a pretty severe mischaracterization of intersectionality in general. Intersectionality refers to the fact that you can't analyze human experiences as linear terms (being black, being a woman) and that you must consider the effects of being some combination of categories. As an example, intersectionality claims that being both black and a woman brings separate challenges than the additive combination of being black and being a woman.
That's all there is to intersectionality, any conclusions you make beyond that are your interpretation of intersectionality, not the general consensus of the "far left".
That's all there is to intersectionality, any conclusions you make beyond that are your interpretation of intersectionality, not the general consensus of the "far left".