While the European defense contractors may promise a comparable plane, they have a poor track record of delivering such a thing anywhere close to the near future.
Some general's wet dream of dogfights in Maverick's style are modern day fantasies. What those planes are used for are just lobbing glide bombs or shooting missiles. Their biggest enemy is on ground. Sure, small radar signature helps massively but that's not enough. Otherwise US would send 500 F-35 into North korean airspace and wipe out most of its military... not going to happen.
I don't think you can conclude that when neither of the belligerents has the capability. As Gulf War shows, training and capabilities (including stealth) do enable SEAD/DEAD to an extent that unlocks air superiority.
USA has air superiority only against 3rd world countries, and even then, history shows that air superiority has never won any war.
