More than 10,000 people joined a protest against right-wing extremism in the northern German city of Kiel on Saturday amid several similar rallies and marches around the country. Coinciding with the International Holocaust Remembrance Day, the event drew crowds to the Baltic Sea port city’s historic main square in support of democracy and solidarity. “Our democracy is more stable than the democracy of 100 years ago, but let’s not be too sure,” said Kiel Mayor Ulf Kämpfer, who also attended. The German Trade Union Confederation, the organizer of the rally, counted more than 15,000 participants,…