Your missing the point, so much, the point is a dot to you.
There is no physical reason the CPU won't run other OS's, its purely as the video said, microsoft trying to log every little thing you do and heavily spy on you, the issue is massive corporation abusing its customers - abusive strong arming a customer using your information and life for others personal gain is literally '1984'
However I bet it won't be long before a hacker changes this - no matter what MS try to do, the OS Kernal is x64 bit universal - you can't make a processor that runs a 40 year old code base immune to all code thats based on x64/x86