Photo by HAMI ROSHAN/Middle East Images/AFP via Getty Images Germans have been taking to the streets demonstrating against the far-right Alternative for Germany (Afd). The protests follow news reports that some AfD members took part in a conspiratorial meeting to prepare for the mass expulsion of foreigners. I share the sentiment and the outrage against the vile neo-Nazi organisers of that meeting. But I doubt that these demonstrations will have much of an effect. Remember the march of one million in London against Brexit? The Brexit marches are a warning that political battles are won at the ballot box. The...