A group of nations singly answerable to a mightier authority would be a reasonable definition of an empire.
Leftists throw up hands in horror whenever they see even the tiniest hint of imperialism, colonial or otherwise.
Have you ever asked yourself why they do not include the EU as part of this thinking?
When unelected governing bodies can override parliamentary decisions - they can hardly claim democracy as the excuse, can they?
Consider this carefully:
While the commission has the sole right to present proposals for legislation, it has extensive powers to intervene in the deliberations of the other institutions to promote agreement and is empowered to ignore and overrule suggestions put to it by the parliament, it ultimately has no law-making powers of its own.