Since they have more missiles than us and have (they claim) hypersonic ones, I don’t think they’ll sweat too much.
If one dies, we all die...is their thinking.
They don’t fear death as much as us.
Or at least me :)
I did some reading on hypersonic missiles and though it hinted that we don’t have any that are fully operational already, I find it very hard to believe Russia has something up and running that we don’t
The thing about hypersonic vehicles is that, while they orbit the Earth at hypersonic velocities - which makes them exceedingly hot objects, and thus detectable at infrared wavelengths by satellite - once they re-enter the atmosphere, their “glide” (terminal) phase is no different than an ICBM - which makes them just as vulnerable a target.
See: https://www.youtube.com/watch?v=fTEhG8zzftQ at the 11:30 mark.