Drone strikes, as they are used, are a more evil way of taking out identified targets of other nationalities. I find the concept of a nation state summarily assassinating people a bit troubling, but drone strikes make it even worse by making it imprecise and cheap.
Drone strikes without on the ground operators create huge collateral damage [0].
When operating in a civilian area, it's far less precise to handle the targeting based on a video stream and to send in a hellfire missile rather than have on the ground operators identify the target and pull the trigger.
Effectively, they are using civilian casualties as credits to buy military lives and convenient and rapid force projection capabilities. Any calculus that considers innocent lives as accepted collateral - when you have other options that are just more expensive or difficult can be considered evil.
[0] https://en.wikipedia.org/wiki/Civilian_casualties_from_U.S._...