Acting like they can't do anything without the US?
The continent is prepping for a US & Russian led invasion if anything (none of which are to be purchased from the US either)
EU to tax US digital services in response to trump's tariffs
EU push for an alternative to US operating systems
Whilst it was true that the EU relied on the US for many things, (the primary being digital services), they've proven themselves to be a dangerous partner who has shown active disdain for us, the movement to exile American tech has begun, and will likely end in a similar vein to how Chinese tech is viewed here.
'Could' specifies a possibility of an event occurring, as opposed to no possibility.
For example, I could have rice for dinner, however there is no way I could jump to the moon.
When applied to the context of this conversation:
A person born in the 90s could have had their childhood affected by the recession in the 80s. A person born in the 50s could not have had their childhood affected by the recession in the 80s.
Could is only vague in the scope of probability; this is because it's a confirmation of the possibility, rather than a defined probability.