Everything that is of value is already “inside the keep”, with the possible notable exception of the shuttle thrusters.
But that doesn’t mean that we are not under threat. The same kind of threat that doomed Earth’s residents sixty-five million years ago, can imperil us today.
Fortunately, we theoretically have the option of moving out of the way. But there are other threats as well, from which we may not be able to escape. It would be prudent to expand humanity’s base far beyond our local star system in order to ensure our continuation in a truly long-term aspect.
Well, at least we don’t have to worry about comets, asteroids and meteorites pillaging the women, plundering the moat and raping the zombies....