On a large scale, make something disruptively innovative to fight back.
#BoycottApple may work by alarming and reminding Apple of their unethical act (to the crowd). But the effect is small because it has nothing to do with Apple's product quality and customer service. If no one buys Apple products any more, we won't necessarily be better off.
That said, I think Apple seriously doesn't have to go this far. If they have the energy to continue innovating there shouldn't be any fear.