While on the one hand the EU as a collective has more power than member states, it's a stark contrast to the US for example where companies and people move around to states whose laws suit them. I for one am all for apple's hardware, so if California banned lightning port for example I can happily avoid them and they do ban and regulate a lot of things yet they are the richest and most populous state even with people preferring other states for nicer laws. "Everybody gets a place and united we will prosper" should be the motto of any union of states.