You're delusional instead.
1, This is essentially "Qian Xue Sun Algorisum" Vs. "Sanger Algorisum"
2. forget about Russia, on this China is at least #2 now, with some details even #1 (e.g. Qian Algorisum; # of china's hypoersonic wind turnnels > and better than those of the US...)
3. this application is theoritically 1 generation ahead of Russia's current best : TopoM
4. This renders entire Alaska TMD obsolete
5. If DF-21D is world's first , (and the first generation of), carrier killer, then this application is the world's second , (and the 2rd generation of), carrier killer.
6. btw, in a sense this is an intercontinental hypersonic cruise missile.