“The enemy of my enemy is my friend” is a proverb that has long, and apparently mistakenly, been attributed to Bedouins. It’s unfair to them, as it contains the false-dichotomy fallacy. Sometimes the saying is correct, as when the Allies decided in World War II to side with Josef Stalin against Adolf Hitler. Other times, both options are equally bad. This is, however, the way many people insist on reacting to George Soros and Russian President Vladimir Putin, the two men currently going toe-to-toe for control of much of the globe’s hearts and minds. You either side with one or...