You might be right (I don't know enough about Apple proprietary hardware to know otherwise), but that's not the same for PC or console. There's no reason that I can think of to assume that those platforms will stop development. For any generation, I can't see PC hardware being less powerful or less efficient than its mobile counterpart, it just makes no sense to me. Therefore, there will always be a group of users with no mobile needs who want the best performance who will keep the platform alive.

It's also worth noting that mobile's market share growth hasn't come mostly from people switching from console/PC to mobile, but from new gamers starting off on the mobile platform.

(FWIW I don't think you deserve nearly the amount of downvotes you're getting)