Unfortunately, its a double edged sword… The EU looking after its own security also means the US loses influence over the EU. Combine that with the EU being a larger market may mean a shift in gdp ratios as the EU looks within more Instead of buying services from the US.
I hope we are still on good terms once the dust settles.
That one could be trickier as many Europeans work for the US big service companies ( Microsoft, Google etc…)