Is it that much easier? Its not like a drone can randomly fly around high profile people or infrastructure without raising suspicion. People would still have to

Is it that much easier? Its not like a drone can randomly fly around high profile people or infrastructure without raising suspicion. People would still have to bring the drones into an area a target is know to be, and not just a drone but something military and clearly nefarious if they are caught traveling/importing. Countries could likely do the same thing today with explosives planted at key timings/places. And drones definitely open options in this but if a country was to act this way I think they would be just as likely with non-drones. Overall I agree this is an extremely dangerous technology for humanity. Generally anything that will allow a small number of people control a larger number, history has show this will be often abused.