There's a problem with this. It isn't Wizards who takes the hit, but the local game stores selling their product. A game shop isn't going to start ordering less Magic unless that specific store gets a shitload of complaints, and the numbers aren't there for a boycott like that. So refusing to buy MtG in protest hurts the smaller, friendlier shops who depend on it. Not Wizards.
The best bet is to embarrass the shit out of WotC in Hasbro's eyes. Hasbro is kinda like The Mouse. You don't fuck around with The Mouse. If they start getting loud complaints, even from just a few hundred people, flooding their inboxes they're liable to sit down and have a talking to with their pet dog. I doubt Jeremy is going to get his shit back, but it could put the brakes on the thought-policing and make Wizards reel themselves back in.