People like to complain about laws/regulation/tax/etc. in the US but it is on an entirely different level in the EU.
People like to complain about the EU without understanding what the EU is. Hint: none of this has fuck all to do with the EU. Germany is a sovereign nation. Edit : And at least this is happening in a proper legal process (which is far from over). It doesn't even come close to the FBI barging in and hijacking domain names of foreign sites without any form of legal process.
In practice the Bundestag has the following demands foisted upon it by the European constitutaion :
1) the European commission can suspend any law, or any number of them, with immediate effect.
2) the European commission can force the Bundestag to enter any text it damn well pleases into law.
3) the European commission can override any legal decision made inside Germany's courts, and can lift any existing case to the European level (where the justices are appointed by the same people who appoint people into the European commission)
4) The European commission can sign treaties in the name of Germany. These treaties have been, in jurisprudence, declared to superseed national law. It has not currently been tested, but in theory they can also superseed the German constitution.
Incidentally, the elected part of the EU, the parliament, does not have any real influence.
Given these, I think it's pretty bloody obvious that Germany is not a sovereign nation. Look at the Germany vs Amazon debacle to see further proof of this.