The Russian planes true stealth metrics are never going to get published. Russia will exaggerate it, US will never reveal that it can be actually detected. Russia had their latest fighter at the Chinese air show, and it was FAR from stealth.
Sure there is a 0.1% chance it may be able to hold 2 circle or one circle against F22, considering that no F22 has ever flown publicly within its full maneuverability envelope, but it sure as shit would lose to the flying supercomputer that is the F35 because BVR missiles that are smart enough to avoid countermeasures are a thing now. Some even use optical tracking.
As far as ICBM defense goes, we did this back in 2002:
Sure there is a 0.1% chance it may be able to hold 2 circle or one circle against F22, considering that no F22 has ever flown publicly within its full maneuverability envelope, but it sure as shit would lose to the flying supercomputer that is the F35 because BVR missiles that are smart enough to avoid countermeasures are a thing now. Some even use optical tracking.
As far as ICBM defense goes, we did this back in 2002:
https://en.wikipedia.org/wiki/Boeing_YAL-1
And you better believe that we have way more advanced shit now.
All you need to know about capability is to look at defense spending of a country in totality. Nothing beats US.