Fat lies shouldn't fly. Microsoft made very clear last year that their Windows everywhere strategy would have you use their compiler to target x86 chips from Intel, not ARM.
Unfortunately there are billions of ARM devices out there, that you can't therefore target with Windows everywhere strategy.
And, last but not least, Intel mobile chips are not nearly as performing CPU and GPU wise than ARM. They simply cannot compete.
So make you want. If you want to be the next loser, go Microsoft. Take the nose dive with them.