Both of you are right.

It’s difficult, but how difficult depends on the task you set. If the task is “maintain manually initiated target lock on a clearly defined object on an empty field, despite the communications link breaking for 10 seconds” -> it is “give a team of coders half a year” difficult.

If it’s “identify whether an object is military, consider if it’s worth attacking, and attack a camouflaged target in a dense forest”, then it’s not currently worth trying.