Chaserious-
Canada, USA, Oz and Europe are the WTs bread basket - also the most likely populations to care about social change- because they are used to people fighting for (and being granted) rights and freedoms.
JWs are a rare target - they are one of the English worlds smallest, yet most recognisable and most disliked religions.
If the public who already dislikes being annoyed by them, were to even remotely grasp the 'secret' social damage, depression,and suicide that results from cults that shun, I'm certain there would grow a natural curiousity about any movement or campaign to demand changes.
You have acknowledged that we easily field thousands, and if class action were ever a posibility- millions could be involved (everyone who is shunned and damaged by their policies- and who isn't?