It's a term for anyone from a centrist liberal to a Greenpeace activist, with the implication that having left-of-median politics and understanding race and demography as anything other than biological essentialism makes you an utter loon. It is really only used by people who would describe themselves as "anti-woke".

The person he's referencing, specifically, got really pilled by evangelical Christianity and believes that anyone advocating for liberal causes has created a religion out of nebulous cultural values, unmoored from god. She blames the "cult of SJW" for the kind of character assassination she claims to have done, that it was the force of rootless bolshevism that was responsible for her supposedly destroying lives and careers by making up(?) relationships and cultural crimes on whole webs of Wikipedia articles.

I’m calling Frank Abnagale on this woman until proven otherwise.