We've been over this. I already acknowledged from my personal experience that all average viewers I know feel this way. Inductive reasoning also happens to be helpful in this situation. Nothing in the movies say the sith are just some random sect of darksiders. the average viewer only has the movies to go off of. I fully admit in the end I am making a bit of an assumption. Once again though the disagreement of the other side also requires an assumption with much less evidence and facts to work off of. It is also pretty telling that the majority of attempts to disagree with the argument have required fallacies to make them work.