Mutually assured destruction was supposed to be a deterrent to anyone using nukes. Not to enable an aggressor force to do what they want without repercussions out of fear that they would use nukes. If they use nukes, at a minimum they’ll no longer exist. Probably along with the rest of us.
I can’t remember the last time I bought a PC. I just incrementally upgrade over the years. I would be disappointed if they came out with a PC that only ran with their flavor though.