The point I'm making on the Eurozone, Cologne, is that if 26 out of 28 members of the EU club, actually belong to a club within a club - the Eurozone - and make laws in the EU that are designed to suit the Eurozone, then the 2 countries outside the Eurozone (UK and Denmark) will be marginalised. This will begin to show big time in the next 10 years. However economically strong the UK is now ( at least compared with other EU countries) it will be led by the nose by a growing Eurozone. I've raised this many times, and no one has come close to persuading me this will not happen.
As for being ruled by Berlin, it has nothing to do with xenophobia. I have huge respect for what Germany has achieved since 1945, and have been an admirer of Angela Merkel, although the open borders to the Mediterranean migrants was a mistake imo, and I'm watching carefully how she treats Greece, bearing in mind that twice in the C20th Germany was forgiven massive debts in order to get back to its feet. Germany is a large and powerful nation. It will control the Eurozone and pay for the privilege by subsidizing certain Eurozone countries. It will make the laws in the Eurozone, and thus the EU. France will follow Germany so long as its farmers keep enriching themselves from the CAP. After the pain of two world wars, it's understandable that these countries move as one.
I notice you make no reference to high levels of immigration into the UK, which, if the UK votes out, will be the most influential factor.