The most plausible scapegoat is the cutting-edge one with a price hike because there is maximum room for others to speculate on what isn’t right/good enough, and there is minimum risk of giving up their spot in line.
By the time competition is up on it, Apple can return to their most familiar location: somewhat behind on the bleeding edge of tech, but ahead on integration and UX.
It’s also possible that Apple is going to take fab in-house but I’m not aware of any signs of preparation and something like that seems like it would be impossible to keep secret.