What is this rambling about? Fact is xbox needs US badly because not doing well in the USA it would be a global failure. PS4 isn't in the same boat it can do merely Ok in the USA and still be the highest selling console globally by a pretty wide margin.
That's why for Xb one USA=the world. But for PS4 and even Wii U the world=the world.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix