[pjmlp]

For starters, because EU isn't a country, rather a union of countries each with their languages, regulations, and tax mechanisms.

[victordevt]

Still, in other areas is was possible. For example in the case of Airbus they managed to build a European counterpart for US players like Boeing.

[pjmlp]

Airbus was originally heavily sponsored by French and German governments, long before EU even existed.