Earlier quoted context omitted.
The US lead over the EU in per capita productivity has massively grown over the last 20 years. There's no indication of waning American power. America has produced 70 times more stock market wealth if you look only at companies created within the last 50 years than the EU. And this is not all paper wealth. If you look at technological sophistication, whether that's frontier AI models, leading-edge pharmaceutical drug…
Does Azure/AWS/Google/FB sell as well in China as well it does in the EU? They sell close to 0. Europe made a conscious decision to not limit the reach of the infinite margin US companies. The deal was we buy your fancy services and expensive war toys, but you keep us safe. America forgot its obligation. Hence the deal is off. Now VW is making war machines and Airbus is building AI infra.
Sure, full-blown protectionism everywhere would make the world including the US poorer (less specialization, less division of labor), but it would also harm EU exports, as the US is the EU's biggest importer, and moreover it wouldn't change the factors behind the growing US-EU gap. US-EU trade policies with each other are basically the same. The difference is internal, and mostly comes down to the US just not sabotaging the private sector as much.