They’re toxic and socially inept. Their power comes from their ability to coordinate, which is facilitated by the platform. Isolate them and they’re just a bunch of powerless loners screaming into the void

This is the power of organization. Individually, they're completely pathetic incels, but with organization, they were able to drive trans people to suicide. And like you noted, the site functioned more like a tool for coordination than as an actual org. Imagine what a real org can do.