Brexit and the EU

I don't know if any of you are familiar at all with Sargon of Akkad.  He does gamer gate and social issue related video commentary, generally, and presents himself as an atheist valuing reason and facts over feelings and narratives. Here he talks about voting for Brexit.  Now I had never really paid much attention to how the EU is set up, how it's ruled.  Beyond mocking the thickness of its "constitution" it really isn't relevant to my life.  Sargon describes the functioning of the EU governing body.  I was pretty shocked, if he's even slightly accurate and no reason to think he's not, that anyone would let themselves be ruled with those parameters.