The AfD co-founder is an easy-going, joyful man. But even after his departure from the AfD and despite his engagement in a more libertarian-leaning party (Liberal-Conservative Reformers), the baying mob on the left cannot even allow him to give a standard lecture in macroeconomics. Neither his employer, the university, nor the state (here: the police) did anything to ensure that he could continue his job. This is not even about stopping somebody from speaking his opinion. This is about stopping a dissenter from speaking when the risk of him saying a word of dissent is close to zero. The reactions are mixed. It stands to see whether he will be able to work as usual again in future.

sources:
https://www.welt.de/politik/deutschland/article202073846/Bernd-Lucke-Politik-und-Hochschulverbaende-kritisieren-linke-Studenten.html
https://www.zeit.de/hamburg/2019-10/elbvertiefung-18-10-2019
https://www.zeit.de/campus/2019-10/universitaet-hamburg-bernd-lucke-vorlesung-stoerung?wt_zmc=emanew.int.zabo.zelbv.keine..text.allgemein.x&utm_medium=email&utm_source=zelbv&utm_campaign=keine&utm_content=Inhalt__text_allgemein_x&wt_cc3=01w0015k0000Inhemanew1901f%7bmid%7d
https://www.zeit.de/hamburg/2019-10/bernd-lucke-protest-afd-universitaet-hamburg/komplettansicht