There's ample evidence that medium range ballistic missile technology is proliferating, fired from land based systems. It is difficult to intercept these with ground-based launchers. But, if incepting from orbit the probability you score a hit is higher. The catch is that it is a) extremely complex, and b) very expensive to develop and implement a system like this. Enter Palantir and Anduril.

The weight of this argument rests on how much you care about being in range of MRBMs, how likely you think it is that MRBMs will be a decisive factor in a future conflict, and whether or not you want the United States to be victorious in this potential conflict. Many people do not care about this threat, don't think MRBMs will matter, and/or want the United States to lose. I am not one of those people.