> I won't trade sovereignity for convenience, regardless of social engineering coming from Bruxelles or Merkel.
This sounds a lot like Brexit leave campaign rhetoric and I suspect is the reason you're being downvoted. Regardless of how you feel about the EU and Brexit, sovereignty has to be one of the weaker aspects. Disliking the EU is fine, but let's be honest about why.
Consider the origin of most nation states. Smaller autonomous regions were invaded or bribed into some form of union. In many of these unions rules were harmonized to varying extents and sovereignty was ceded. Common currencies were also adopted in some of the unions.
Consider the nation state that you hold the sovereignty of so high. Imagine tomorrow it was split into two. Both of these regions have the same currency and many common rules and regulations. Given that it's highly probable that your country has fully embraced capitalism and derives much of its wealth through trade, it has a choice: change things or not. If you don't change anything you haven't really regained sovereignty. If you change things you're imposing barriers to trade. Given you had a common currency and rules before, there's a good chance that they were your preferred trading partner if the infrastructure was good enough. Interestingly, there are regions where intra-state infrastructure is better than inter-state infrastructure, usually due to geography.
But we can go deeper than that. We can keep subdividing from regions into cities into towns into households into individual people. Every time you go to the ballot box you acknowledge that you have ceded individual sovereignty.
All the evidence I've seen points to the sovereignty argument in Brexit wasn't about sovereignty being ceded, but who it was perceived as being ceded to. Because if the vision of the Brexit-supporting International Trade and Development Secretary is to be taken as the post-brexit plan, then Brexit will be all about ceding more sovereignty for less trade.