Puggo - Jar Jar's Yoda said:

Father Skywalker said:

You see?? Without the rebel alliance's existence, no death star usage on any planets!!!!

That is really lame logic. If someone opposes you, you have the right to kill people, because your defense is "if that person hadn't opposed me, nobody would have died" ?

Umm, no. Even if the rebels had never existed, alderaan wouldnt have been destroyed, it was a means to replace the galactic senate........

Even with your analogy, if the rebels left them alone and waged no war, no problem...... The quadrillions of happy imperial citizens/civilians didn't care if they retaliated against a bunch of rebel terrorists, from their POV........