Reminds me of the very rational 'PC is dying' arguments. Or the 'Nintendo should go 3rd party' arguments too. Common sense has a tendency to not play out how we'd expect.
I imagine when consoles do die, they'll be replaced with streaming rather than PC. At the moment consoles aren't dying; Sony won't stop making PS consoles until they can no longer make (good) money from it, which doesn't look to me to be next gen. So I guess, unless you can point to PS6 being canned and Sony putting out a PC instead, this line of discussion doesn't fit this particular thread.
+1 console will be replaced by streaming not PC.