I honestly detest the use of drones in warfare. In regards to the UAVs used in the military, there are two ways for them to operate. The first method of operating the drones is by having them be completely automatic and ruled only by the on board computers and whatever target they were given. In this situation, I feel that it removes the human element that should be present before a life is taken for any reason. Even soldiers have to make judgement calls, which is something that modern advances haven't managed to allow machines to do. The second method of operating the drones is similar to an RC plane, where an operator on a ground controls the drone. While this doesn't remove the human element, it still has the part of drones I strongly dislike. With drones of any form, we don't even have to have troops on the ground. Using drones to fight is essentially cheating warfare. History is written by the victors, but those victors will always be one of a few strong nations because any government that comes out with an opposing viewpoint (correct and moral or no) we just missile the shit out of them. I honestly believe nothing like the the American Revolution will ever have the opportunity to happen again. The second someone stands up to any first world country and it's tyranny, there's a chance they'll just have a missile dropped on top of them.
In regards to slavery, we are slaves in a sense. We are allowed to have whatever possessions we work for, but most people are paid a small portion of what they make for their employers. We're stuck in a stale, corrupt system where disobeying the master (government) will get you killed or ruin your life. I can't accurately speak about legislatures all around the world, but in America, it seems that a huge number of laws are devoted to pointless, unmerited restrictions. There is a quote in the declaration of independence of the USA which says "Governments are instituted among Men, deriving their just powers from the consent of the governed, --That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness." People were told to overthrow any corrupt system, but saying certain things about the government is illegal now.
Sorry that my post is largely based on examples of the USA, but using my country of residence as the example seems like the natural thing to do.
In regards to the 3 rules thing, no code is perfect and no code lasts forever. If we create AI, it will eventually fuck us over. If we were to make fully intelligent robots, they would be the same as humans in every respect except the shell we wear. It only takes 1 defective AI to end the world.