(And except for Cambodia, those have always either been completely false, or gross exaggeration.)

Well, Cambodia was exaggerated too, it just wasn't false like most stories are. Furthermore I'd add Peru to the list of socialist states (from when it was under Gonzalo) that can be pretty safely denounced, along with Cambodia.

Even in the case of bad leftwing governments like Cambodia and Peru, the truth and the mere actual crimes aren't enough for the west, perhaps because then they wouldn't be able to keep up with the imaginary crimes of the USSR, PRC, and DPRK!