

The idea of the Netherlands and Belgium merging is completely detached from reality, adding Luxemburg to that picture makes even less sense. Economically it could be great with the combined harbors of Antwerp and Rotterdam. But historically and culturally it clashes, even between The Netherlands and the Dutch speaking part of Belgium.
I think patience has already run out. It is rather a calculated approach of identifying what does and what doesn’t depend on the USA, and setting up alternatives for those things that do depend on the USA for example through trade deals (Mercosur, India) and investing in independent tech (funding open source projects, governments moving to native tech alternatives).
In the past year the EU has found out that it depends scarily much on the USA, but also that it can be more independent than expected while also having serious economic leverage.