If Merkel has discovered Europe in a beer tent, I can only say: better late than never. Otherwise, it was the height of hypocrisy: The chancellor sat down for a beer with CSU Chairman Horst Seehofer, the man who after the election praised Donald Trump as a very resolute man.

Referendums are a democratic instrument, but so are decisions reached in a parliamentary democracy. I advise extreme caution when it comes to referendums. In Germany too.

When we were negotiating the ongoing financial period in 2013, I talked myself hoarse. London and Berlin in particular insisted on reducing the budget. So we - to the applause of German journalists - made cuts to central future-oriented areas and slashed the budget for development aid, research and technology.

We all have to accept accusations that we ignored the refugee crisis for far too long. The first time that I referred to the Mediterranean Sea as Europe's cemetery was in October 2013, when hundreds of people drowned off Lampedusa. Italians, Maltese, Greeks and Spaniards have been pleading for help for years. But nobody cared.

Particularly in periods of crisis, governments have the obligation to lead by good example! Instead, many in Europe are confronting this global challenge with a penny-pinching mentality that drives me crazy.

We Germans are particularly aware that you can only be successful on the global market over the long term if you offer energy-efficient products that are, by nature, climate-friendly.

Donald Trump has made the principle of purposely breaking a taboo into a means of achieving his political objectives, which is something that he has in common with Turkish President Recep Tayyip Erdogan and Hungarian Prime Minister Viktor Orbán. Trump systematically violates international rules. But we cannot allow ourselves to forget that Trump is not the U.S.