Over the past 15 years the European economy has grown from 16.25 to 18.50 trillion per World Bank. In 2008 the combined economic strength of the EU was 110% of the United State's. Today it's ~65%. By and large the European economy completely missed the mark on the Internet/Web3.0 technology revolution. You certainly have bright spots like ASML, but those are the exception and not the rule. It's reindustrialization efforts are facing massive head wins from energy costs and China is absolutely wrecking their neo-colonial African holdings.
I hope the EU moves to a more Federalized model of governance - it would certainly benefit them. And I agree that it won't be easy. I am not sure California and Texas would agree to the model the United States has today. I can't even imagine what it would be like for Germany and France. But they have some serious issues to address. These are some foundational changes that are unlikely to happen in the next year or two.
Adjust GDP per hours worked, you will find Europe has eclipsed the US in terms of productivity.
The US has the benefit of the government borrowing insane amounts of money to juice it's economy, by being the world hegemony. That advantage has evaporated and you see the current capital going to unproductive industries.
The ratio in money between the revenues in Europe and those in USA is rather misleading.
With the same amount of money you can do much more in Europe. Even in the few domains where USA had a traditional advantage, like the prices of electronic devices, e.g. computers, things have changed a lot recently.
Prompted by another discussion thread on HN, I have compared yesterday some prices for computers and associated components in USA and in Europe. Now the prices in USA are 30% to 40% higher, in sharp contrast with how the price ratio was in the previous years, when prices were lower in USA.
The real economic strength of Europe vs. USA is much greater than the values of GDP expressed in USD, and including some meaningless indicators, would seem to imply.