Another facet was the Left was absolutely enamored with the Soviet Union, Democrats heaped praise and fawning awe on Gorbechov etc.
When the collapse of communism happened the left started acting like a jilted lover.
Ever since then the left has taken every opportunity to punish, castigate, and attack Russia for dumping communism.
So true. They act like a jilted girlfriend, or like moslems going after an apostate.