By that time the same Mythos class run on specialized hardware 5 years earlier will have fixed the same bugs that the Mythos class on consumer devices could have exploited.

We'll be fine.

That's status right now, and that's because we just got models than can speed up the mitigation or find new CVEs. Plenty of reports of how many of them get patched now, most recently with Chrome.

If that's the natural outcome then the future you're describing is inevitable.

Oh well, maybe the last one to leave the internet can turn the lights off.

It’s not a natural outcome it’s a decision