some countries are greater than some of its parts.Europe getting outperformed in economic growth by the USA since 2007 is real. But it is exaggerated. EU's GDP PPP per capita was 70% of the US in 2007. Now it is 69%. So inflation and population adjusted situation is still pretty much the same. The US increased the money supply by a lot after 2008 with non-existent interest rates and high-government spending. Look at the debt-to-GDP ratios of the EU and US.
Between 2007 and 2023 the EU went from 62% to 86%. The US went from 62% to 130%.
The story with the inflation rate and income inequality are similar too. The US nominal GDP is increasingly becoming detached from reality, at least for people without millions to stash in US financial system. The USD is overvalued. American produce is extremely expensive because of this reason. Products made by foreigners are very easy to buy for Americans, which is also the reason why the US has a huge trade deficit.
Europe does not have real GDP (think what EU sells to China) unlike US and its control of Canada. US can freely trade with Asia Pacific while Europe trade with Asia will have to go through Mideast and Africa and this will become bigger threat to Europe in coming years.
US strength not just comes from internal GDP but its ability to shape the world. US has successfully transform Mexico into foremost Industrial power and have incorporated the fastest growth of Hispanic population. US has successfully attached the best of India, Israel and Iran to itself. look at Nasdaq.
while Europe two failed states aka Ukraine and Turkey examples right in front and this on top of demographic collapse of previous Eastern EU.