Seriously?!? Dumb phones are fewer and fewer. Low end Android phones are taking over the traditional dumb phone market. The size of the smart phone market is growing every year. Sell through numbers of Apple's iPhone have increased year over year. Apple's iOS ecosystem is also incredibly strong which will help sustain them.
I'm not saying Apple shouldn't be concerned about Android but you seem to think it is a foregone conclusion that Apple will become irrelevant. That is absolutely ludicrous.
If anyone is "following the herd" it would be those buying Android. This term would be more appropriately applied to Android considering the market share size and how there is a very large contingent of blindly devoted Android proponents...at least as much as on the iOS side of things.
Yeah. Apple is doomed I tell you. Their market share keeps dwindling every single year.
I mean, take a look at the chart below. It clearly shows how the shrinking market share is affecting Apple.
Apple is doomed I tell you! Doomed!