While I agree that maybe if Annual Passholders began a Do-Not-Renew Campaign Disney would probably be forced to make some changes, I don't think Annual Passholders will do anything of the sort.
I know my willpower to refuse the park is weak, or rather, nonexistant.
The most productive thing most of us can do is give Disney honest reviews of new additions, take photos of new additions, note the positives as well as the negatives, and don't sugarcoat anything.
The problem is that Disney fans in general are all far too forgiving. When people attack Al Lutz for talking about underthemed or tacky additions, or you for noting the lack of imagination in current offerings, its clear that Disney has become much like the republican party - tricking its followers to believe they can do no wrong.
But there are those who resist and what we can do is continue to give Disney scathing reviews when necessary to let them know that they're giving us sub-par, or give them positive reviews when they've done something right.
They've only done well in the handfull of classic updates with Jungle, HM, POTC, and Space.