Why? The EU is inherently anti-democratic IMO. Most people have no idea what is going on, what laws are being discussed and so on. Why should the EU have power over stuff like this to begin with? It's stupid.
I agree that the EU is not perfect. But it's not anti-democractic. The European Parliament is elected democratically. Sure, there are ways we need to improve the legislative processes, but this doesn't mean the best thing to do is to disband the EU.