electoralism

Nah. The bureaucrats in the various agencies (aka the deep state) will continue running things behind the scenes, as will the GOP house and senate members who are less mercurial than Trump (which is most of them IIRC). The president being a dementia-riddled madman doesn't really matter, see:

• Biden
• The last Trump presidency
• Reagan

Eventually, Europe will come up with its own stealth fighter.

"Eventually, Europe will waste billions on another plane that can't fly in the rain."

Europe doesn't have the ability to go it's own way. Without energy sovereignty, which was denied to them with the ukraine war and the Nordstrom bombings, and with neoliberal austerity they won't be able prevent deindustrialization. The world is still addicted to dollar denominated debt so I don't see a way out for anyone else either. Also, China unfortunately just sits there keeping to themselves so they won't be build a robust alternative to the US for a good while. Those are all short term outlooks though. I'd like to be proven wrong though.

europe couldn't find its dick on viagra, they will at best establish commision to investgate feasibility by 2027, and then have a giant row who does what in the value chain, and then lose elections

I see it as a blow to American hegemony for sure, but nothing that fundamentally change anything at this point. Maybe more of a benchmark to look back on than anything else