Same way Germany has no "demos"?

Germany has several but also an overarching national one. The EU has several national ones but the overarching one is not cohesive in the slightest.

Btw, the word you are looking for is "polity".

No it isn't.

The Council cannot just "impose", there is also the Parliament and the Red/Yellow Card System for national parliament.

Hence the "the EU in general" bit of my comment.

You do realize that the only way to change the system is to give more power to the Parliament, and lead to a more federative rather than intergovernmentalist system, right?

That doesn't automatically create a cohesive demos. And if it doesn't then all you're doing is further estranging the population from their governance.