With regard to fighting communism — which, aside from Nazism, has been the greatest evil in the modern world (it killed and enslaved far more people than Nazism) — the left was an obstacle, not an ally. The left in the West and elsewhere did far more to enable communist evil than to stop it.
All my life, I have known this rule about people: Those who don’t fight the greatest evils will fight lesser evils or make-believe evils.
This happens to be the morally defining characteristic of the left. During the Cold War, many liberals and nearly all conservatives fought communism, but the left fought anti-communism. The left opposed American military buildups and regarded the Cold War between America and the Soviet Union as nothing more than two scorpions in a bottle fighting to the death. They loathed Presidents Nixon and Reagan, not Communist Party Secretary-General Brezhnev.
They regarded Reagan’s labeling of the Soviet Union as an “evil empire” with contempt. Typical was the reaction of one of America’s best-known intellectuals, Henry Steele Commager, then a professor of history at the Amherst College. He said, “It was the worst presidential speech in American history, and I’ve read them all.”