Why are you taking it so personally?
Of course you can have an opinion. But if it's regurgitated rather than considered, don't be surprised if somebody challenges it.
Sony have sold 18.5 million PS4's in just over a year. And that means to the end user, not shipped to retail as with the Xbox numbers (and that's not a dig at Xbox before anybody gets upset!). So you tell me why you believe they face market isolation, other than that you have read/heard it somewhere on the internet? It seems every story on the Internet is challenged with pointless "IF's" nowadays.
"If only me auntie had b****cks, she'd be me uncle!"
Pointless.