I think you are living in some other universe? The golden age of NATO has long gone.
NATO is still only hyper power in the World
Russian technology sucks in Ukraine
And China doesnt have advanced technologies to match with NATO
U.S. Air Force used simulation data from the Taiwan national electromagnetic compatibility Laboratory
The "frontline RCS" value for the J-20 fighter jet in the X-band 10 GHz as 0.05 m² [-13 dBsqm] ...... because of delta canards

F-22 and F-35 have much lower RCS than J-20
Even Turkish KAAN is coming with RCS of 0.01 and 0,003 m2
KAAN even with F-110 Engine has lower RCS than Russian SU-57
USA develops F-47 6th gen Fighter
The UK and Italy develops GCAP 6th gen Fighter
France has its own plan to develop 6th gen Fighter
Turkiye has started developing 6th gen Fighter through KAAN
F-16V , F-15EX , F-18F , RAFALE F-5 , Eurofighter T5 , GRIPEN-NG are modern 4,5th gen Fighters
Turkish KIZILELMA unmanned stealh Fighter Jet has lower RCS than Russian SU-35 and Chinese J-10C
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Russia has only 1 old Aircraft Carrier
And China will build 9 Aircraft Carriers until 2035
on the other hand , NATO has already 16 Aircraft Carriers
also Turkish MUGEM ( 300 m ) Aircrfat Carrier is under construction
also Italy , France and Spain will build new Aircraft Carriers
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if needed
USA , The UK , France , Sweden , Turkiye have capability to produce Fighter Jets
if needed
USA , The UK , France , Germany , Italy , Turkiye , Spain have capability to produce Warships ( Frigate-Destroyer ) and Submarines
NATO has great money ( $1,6 trillion defense budget )
China and Russia's combined defense budgets range from $450 to $530 billion annually.