Mastery of the German language and the acceptance of our legal system has to become part of the criteria for naturalization.

We need to finally be proactive in enlightening people from Islamic cultural groups. And this applies to immigrants already here as well as to current refugees. The German constitution stands above the Sharia. Schools need to offer classes on gender equality. You also have to offer an alternative to young men with a penchant for violence.

As soon as you opened your mouth and said the word woman, you were beaten down with the argument that you were betraying the class struggle. There are many poignant writings in which feminists first write pages about their class standpoint before getting to their actual issue. What was then known as class warfare is today called anti-racism. The threat of being accused of racism gave birth to false tolerance.

I can't just go up to people standing in the snow at the German-Austrian border and ask them: "Are you an Islamist?" When people flee to us from war zones, we first have to help. But we also have to be quick to look very closely at who it is that is coming.

If I read the Bible, I can also find a few harsh verdicts. Every religion can be abused. We're not talking here about religion and faith. We are talking about the politicization of Islam, and, by the way, it is first and foremost exerting pressure on the majority of peaceful Muslims who live here in Germany.

But when you only speak using generalizations, you run the danger of denying the specific. In recent decades, millions of people have come to us from cultural groups within which women have absolutely no rights. They do not have a voice of their own and they are totally dependent on their fathers, brothers or husbands. That applies to North Africa and that applies to large parts of the Middle East. It isn't always linked to Islam.

People aren't stupid. They saw what was happening at the Cologne central station. A lawless space was created in the middle of a city of over a million. That has to be addressed and it has to be done so in a sober-minded way.