On the original question, I've been to Norway. It doesn't seem to be broken. Therefore I suggest you don't need to fix it.

Euro-nuts always trot out the line about ha ha, you have to obey our laws, but you get no say in them. Yeah, fine, so what. Laugh it up, dirigiste fan boys. This differs from being a member in what way? The UK is a member, we have to obey the laws, and we STILL get no meaningful say in them. (I prefer the French approach, where you ignore all the laws, and write them all too.)

Besides the global economy is tied to the US (for now), and for better or worse US foreign policy largely dictates the world agenda, but no one says we should get a vote on who runs the Fed, or tell the US where to send its carriers.

Stay out. Free trade was a good idea but the political project sucks.