I can think of one flat out bad call against the Raiders.... The one when they were playing the Patriots. Other than that, you have to either be a moron that doesn't know the rules of football or a fan who never watches the games to say the NFL is trying to screw the Raiders. The Raiders are most penalized for holding, and when they do get called the broadcasts show the replay 99% of the time and guess what, THEY WERE HOLDING. Over 90% of the penalties called against the Raiders are justified, as with any team. You need to stop looking for an excuse for the Raiders' continuous losing seasons and face the facts.
And since this arguement is so stupid I will not continue with it. When someone is arguing about a conspiracy against their favorite football team (LMAO) and has no evidence other than the Raiders being called for penalties that they deserve, one should not entertain that individual with a debate.