I just don’t understand why fans really want cloning to be brought back into the franchise. The cloning stories that the old expanded universe told involving Palpatine, Luke and Starkiller were just so ridiculous and I would go as far to say they were awful. It just felt like fan service at a ridiculous new height and power. I do believe that J.J. Abrams, Kathleen Kennedy and everyone else at Lucasfilm are way too smart to think of and include an idea of Rey fighting a Dark Side clone of herself. I honestly don’t know why fans would want to see something as bonkers and nonsensical as this idea sounds to me.
Why would cloning be so weird? There was a galaxy-spanning clone war, so why is it so silly that a Sith obsessed with eternal life would dabble in cloning. That’s not to say I think Rey should be a clone (I think that would be unnecessary), but I don’t get why its inclusion in the EU is often perceived so negatively.