All of these are cases where EU was removing state regulations in favor of their own regulations. I don't think this falls under deregulation at all, it's just centralization.

It effectively removed a great number of pages of laws/regulations/contracts that need to be applied to my life.

I never need to think about import/export restrictions, immigration law, visas, exchange rates, phone contracts or medical insurance contracts.

It certainly deregulated my life. I feel less regulated on what I can do. It removed barriers. And that's really the only thing that matters.

But this is a case of countries removing legislation from you.

I think it is extremely hard to argue that this was a case of the EU deregulating anything. What happened was the EU started to regulate more, which invalidated the regulations of states.

No, it's a case of the countries which are in the EU all making their legislation equivalent because they all agreed to let the EU be the place where they figure out how to do that.

The EU is specifically the mechanism by which the countries streamline their legislative differences.

Sure, but what does that have to do with anything?

I mean... technically that is a new regulation. Some Polish providers already didn't have roaming fees in EU before that.

If you make a law that cancels a previous one, it's still a new law, but if you want to measure "regulation", it is less?

Yes, I don't see how the EU mandating free roaming is a case of deregulation?

Perhaps I'm missing something.

Consider that for the small convenience of using the same currency and health service of other countries those very fee times that you travel, your country has given up sovereignty. It seems like the capricious desires of cheap-flight digital nomads have been traded for something as fundamental as sovereignty.