Russian equipment has never in history stood up to US equipment, even in the Korean War when it was relatively good thanks to the USSR copying a Rolls-Royce Nene engine.So, USA is modern day superman? Do you think Russia is incapable? On what basis? USA and Russia have an arrangement o de-escalation. So, neither does USA shoot down Russian planes nor Russia shoots USA planes
S-400s are not God's right hand. Wait until you add EW to that nearly invisible RCS and see what happens. BQM-74s, cruise missiles, F-22s/35s plus Growlers and no air-defence system has a cat in hell's chance, or even enough missiles.Stealth aircrafts are not Alladin's flying mat! They have low visibility but not invisible. Also, the air defence network has radars from various angles due to which not just the frontal RCS is seen but sideways RCS is also seen which is god enough to give away any stealth plane.