Earlier quoted context omitted.
The internal conflict is that the European planes that exist are nowhere as capable as the F-35. 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.
Well unless we in Europe want to do in direct conflict with US (ie for Greenland), this is mostly irrelevant extra capability. As Ukraine shows, peer conflicts are won by other means, not stealth air superiority over sheep herders with AKs. 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…
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.