Wars in the future will either be the low intensity conflicts we have been experiencing since the 60s, or (God forbid) one high intensity war where you will win or lose with whatever resources you have when it starts (or maybe whatever is left a few minutes after it started).
There will not be time to build vast fleets of ships and planes to bring into action as there was in WW2.
I don't see any reason to hang on to this kind of base on the off chance that we might be bombed back into the early 20th century and actually need such a facility again.
IMO, we should be militarizing space. With fast space planes we can bomb someone anywhere in the world within a few hours of a decision that they need to be bombed. or with bombs already in orbit, they can be bombed in a few minutes from such a decision. In fact, the bombs probably don't even need to be explosive. Gravity can be used to make a dense object accelerate to very high velocities that release an adequate amount of energy.