At that weight and coming down as fast as it does, would it even need to carry a warhead? Hit one of our flat tops and punch a hole all the way to the sea. That is a terrifying thought.
I am imagining what happens with entry and exit wounds. The damage would be horrific.
Can our flat tops be equipped with a large deflection plates? Maybe have a second deck that can be quickly raised up at at sharp angle to deflect the ballistic bullet off and into the sea?
The proliferation, theft, and giving away of technology may well have come home to roost.
The quoted weight includes the fuel and discarded structure of the multi-stage missile.
And no, they cannot be fitted with plates as you suggest. The simple answer is that they would weigh too much, be too complex to fiit, and useless even if they were made part of the design.