KilroyMcFadden said:
I always imagined a situation where there was some kind of evil clone uprising.
That's exactly what GL originally thought of it as: a rebellion by evil clones sometime in the past, which presumably led to a ban on the use of cloning technology (as seen in the use of mechanical artificial limbs--a plot staple from the very first draft of ANH).
In fact, the Clone Wars as first conceived were clearly inspired by the Butlerian Jihad in Dune--the long-ago conflict in which sentient machines rebelled against human rule, leading to a total ban on intelligent computers in the Dune universe. Only, in the SW galaxy, robots remain ubiquitous, and cloning is taboo instead.