What can be done?

Forscher zu Gentechnik: "Es gibt keine neuen Erkenntnisse, die ein Verbot rechtfertigen" - SPIEGEL ONLINE - Nachrichten - Wissenschaft

.... to clarify, that genetic modification of plant and animal is one of the key technologies to survive in a world with 9 billion human beings under decent conditions.  The linked article in the German Magazine Spiegel describes the destruction of test fields of a University (which were in full compliance with all German laws) by opponents of Genetechnology.
What are the reasons for this irrational behaviour.  One is cited by Prof. Schier in this article: 40% of all Germans think that only genetically modified tomatoes have genes......

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