I’m not sure these are such a great idea, but if china wants to blow a lot of money on them great. Consider, they are slower than a conventional RV - which we have already proven we can intercept. They have a limited energy budget for maneuvers - lest they scrub off even more speed. They are hot, easily targeted by infrared sensors. They cannot employ decoys, even the thin atmosphere strips away lightweight decoys. Frankly, I fail to see the appeal as a delivery system.
Slower? I thought hypersonic meant really fast.