As a quick summary for the people that haven’t been following the Xbox One that closely; it’s a console that was originally announced as always-online, would not play second hand games and required Kinect to work.
All of this simply would have taken time and a long-term marketing strategy to succeed. The Xbox One would never have won over everyone, but it would have found an audience of advocates of its own. Now, though, it’s doing exactly the same thing as the PlayStation 4 and the only point of differentiation between the two will be the software and exclusives. It’s not sustainable – it didn’t really work to anyone’s benefit this generation, and it won’t in the next either.