The trick is there are two types of "Apple fans"
One group is fans of Apple products. They would like, if at all possible, to get Apple products with even better features are even lower prices. They want Apple to be healthy so it can keep cranking out great products, but when they look at Apple's profit margin and pile of cash, they wish some of that money had stayed in their own pockets. When Samsung makes a product that puts pressure on Apple, or Google adds a feature to Android, they see that as a force that will make their lives better, by forcing Apple to step up its game, even if they don't particularly respect Samsung or Android.
Another group is the true Apple fanbois. They are the ones who have given tribal loyalty to a corporation, and celebrate things like Apple's profit margin, root for Apple to successfully use its patents to eliminate possible competitors, et cetera.
People in group one are perfectly reasonable. People in group two are frothing cultists who have a tendency to, for example, jump into Android forums and spew flame.