The idea of ethics is based on having some level of shared values. If we act collectively we can promote these values. In this case, if we collectively disagree

The idea of ethics is based on having some level of shared values. If we act collectively we can promote these values. In this case, if we collectively disagree with something then we can "punish" it by not engaging with it commercially. I'm not sure how the abstract sabotage suggested makes any difference if the reasoning behind it isn't expressed - giving someone exactly what they want is hardly a great long term motivator for change.