Ukraine really does have a far-right problem, and it’s not a fiction of Kremlin propaganda. And it’s well past time to talk about it.Ukraine’s far-right is like a hydra, with ugly heads that pop up far too frequently. Just within the last few weeks, an American-born cabinet minister thanked a group of violent neo-Nazi “activists” for their services, a soldier was photographed wearing a Nazi death’s head patch right behind President Petro Poroshenko and almost 1,500 neo-Nazis and friends threw a two-day Hitler-salute-fest.Ukraine’s notorious Azov movement keeps growing. Since it was created in 2014 to fight Russian-led forces in the...