“The kinds of people who are willing to justify, minimize, or deny the slaughter of millions by the likes of Stalin and Mao are unlikely to blanch at Hamas’ much smaller-scale atrocities. If you are willing to embrace the Great Leap Forward, Stalin’s purges, or Lenin’s Red Terror, there is probably no limit to what you will accept, so long as you think it is moving the world in the right direction.”
– Ilya Somin, in an article that goes into the details of why so many on the Left have adopted a version of the oldest hatred.