The discussion on this thread is reminding me of the Kryptonian Clone Wars from the early post-Crisis Superman comics of the '80s, which itself was caused by issues over clone rights.
Over 100,000 years ago, Krypton had already developed scientific advancements far beyond those of present-day Earth, and within a few millennia had conquered disease, learned to delay the aging process, and perfected cloning; vast banks of non-sentient clones held multiple copies of each living Kryptonian so that replacement parts were always available in the case of injury. All Kryptonians were effectively immortal, "with all the strength and vigor of youth maintained," and enjoyed an idyllic, sensual existence in an Arcadian paradise.
However, this society was tipping toward decadence and eventually political strife that resulted from the debate as to whether clones should have rights (sparked by the presence of an alien missionary known as The Cleric). Eventually this disagreement led to open violent conflict, especially after it was openly discovered that a woman's cloned copy of herself was allowed to gain full sentience and to establish a full, normal life. However, when a young man (the original woman's son) had discovered that his fiance was this clone, he killed the clone and then publicly killed his mother, and also attempted his own suicide before being stopped. This key incident ignited the Clone Wars, during which Kryptonian science was turned to warfare and several super-weapons were developed and used. Among them was the device known as the Destroyer.
Although the Eradicator's effects (altering the DNA of all Kryptonian lifeforms so that they would instantly die upon leaving the planet) were felt immediately, the Destroyer's effects were possibly more significant: by the time the Kryptonian government admitted defeat and abolished the clone banks, a pro-clone rights terrorist faction known as Black Zero had started the Destroyer, a device which functioned as a giant nuclear gun, projecting massive streams of nuclear energy into the core of Krypton, intended to trigger an explosive chain reaction within Krypton's core almost immediately.
At the time, it was believed that although the use of the Destroyer resulted in a nuclear explosion which eliminated the post-Crisis city of Kandor, the device had been stopped before it could achieve planetary destruction (ironically, by an ancestor of Jor-El himself), but centuries later Jor-El would discover that the reaction had only been slowed to a nearly imperceptible rate and would eventually destroy the planet as intended.
With a few adjustments, I could see that same basic story working within the SW Universe.
