So you are saying that Apple consumers are dumb enough so they will not notice, that everybody can do the same thing they do 2-3 times faster, for less?
Nobody is THAT stupid to risk putting their computers into complete irrelevancy when it goes to performance. For the time being Intel is "that'll-do" option for Macs. But for how much longer?
ARM NEVER will be serious contender into high-performance market. They will be good option where you need reliability, like Data Center jobs. But absolutely nothing that requires highest possible performance.
And that last thing is actually what consumers and clients demand. And no, Intel does not guarantee that last thing right now.
They even do not guarantee power efficiency.
Never say never. Arm has come a long way, particularly with apple's chip designers. I don't think it's ready for prime time enterprise metal yet, but you can see it coming. It's probably good enough for laptop use already.
One of the big problems is virtualization. A lot of people still need intel binaries of one form or another to be 'runable' on their systems. ARM will likely suck quite a bit at trying to do that with any reasonable speed throughput for quite a while (of course I'd love to be wrong about that). So for a lot of people, they are going to want an intel/AMD solution for a good long bit before ARM can handle the virtualization duties at some reasonable clip.