>>The whole point is that you don’t have a plug to pull

There will always be a plug to pull. All systems run on electric and that plug can be pulled. All systems network through cables (or wifi) and those plugs can be pulled.

And nothing's going to stop you from doing so unless they build some robotic arm to block you or lock you out of the building. Even then, you can blow up the building.

As I asked another commenter: Who is the "you" who has the power to tell random data centers to shut down, inconveniencing their other clients? Never mind to order air strikes? You cannot just handwave away the problem by positing countermeasures that require an infeasible amount of coordination to work in the real world, without actually explaining how that coordination would be arranged.