The one thing that Intel has at the moment is x86 and the historic effort that has gone into generating and optimising code for the x86 instruction set. Sharing

The one thing that Intel has at the moment is x86 and the historic effort that has gone into generating and optimising code for the x86 instruction set. Sharing that with three other vendors (think three other AMDs all competing with Intel) would catastrophically undermine their CPU business. In any event it's too late. They maybe had an chance of fending off Arm a few years ago - by the time any licensing now kicks in Arm will have established itself in the server / PC market. So the only sensible strategy for Intel is to make the most of x86 whilst they can.