I think the whole manoeuvrable hypersonic re entry vehicle has yet to be really proven by anyone other than Chinese/Russia/Iran/NK propaganda claims.
One of the complications I believe still hasn't really been overcome is the plasma build up on leading edges, disrupting sensors and communications aside from rear beaming - resulting in having to slow down significantly for any kind of target acquisition, etc. and I'm fairly confident no one has reliable working versions at anything like the headline speeds - all Russian successful tests are around half the headline speeds which is still fairly impressive to be fair but far from the hype. Also they rarely do hypersonic speeds through the whole flight path - some will accelerate in the terminal phase, others actually slow down for the terminal phase depending on the purpose of the missile.
Where they are actually at their most potent is if you fire a whole load at a country as with the limited time to react and uncertainty as to destination it makes intercepting them a nightmare unless you happen to have a high end complex located at the target. Which is one of the reasons they aren't as high a risk against ships (as long as the ship is accompanied by or is a air defence destroyer or has similar equipment onboard) as some make out as while the short time to respond is a difficulty you don't have to chase the missile down to intercept it and even with their speed a ship manoeuvring can cover some distance in the time between missile launch and reaching the target requiring the missile to use its sensors to stay on or reacquire the intended target which as things stand means it needs to slow down.
EDIT: Also in terms of ships you need to have a location for the ship in the first place, or use a missile which can itself locate a target profile (which comes back to the plasma problem), and aside from real time satellite location a fleet in a real war situation won't be letting hostile stuff get close enough for that and/or employing jamming, etc. to reduce the possibility of a hostile actor doing so, and if you can overcome that you probably don't need a hypersonic missile to do some damage.