Wrong.

The EU has its legislation but every member state can have its own,
including aviation.
So when it comes to aviation you first have ICAO, then EU, then state
regulations.
The last ones give you the real headaches when flying from country to
country.

And every airport can decide what traffic they welcome or not.
The discussion was that large airports do not welcome GA, but on a
smaller scale some airfields are off limits to UL and things like that.

-Kees