To use a better, more direct local example of swarm protest/boycott, the entire staff of Club Jager quit when it was revealed the owner had donated a relatively small sum to David Duke's political campaign. Combined with some inference based on his other interests (Germany, Germany, and also Germany) it was concluded he is a Nazi. A real Nazi, not the term flippantly thrown around by modern leftist children.
I think Club Jager came back, but probably had trouble attracting staff and patrons, and is now long closed. But he also owns and owned property elsewhere. On Lyndale Ave near Lake Street, he owns the building that formerly housed HUGE Theater (they finally moved this year) as well as the popular UpDown bar. Even though he doesn't own the businesses like he owned Club Jager, they haven't suffered as much if at all. Although in the case of HUGE, it's likely they moved at the end of their lease primarily due to the landlord's politics. I wonder if it also played a role in keeping the former specialty woodworking hardware store vacant, which he eventually sold to Gyu-Kaku. It may play a role in the potential renter market of the HUGE space, as well.
RE: Traditional Activism is a Failure