And since the U.S. military has already demonstrated that drones are an effective weapon other militaries and even terrorists have been trying to weaponize drones. This is because U.S. military has made it seem effective and reduced any taboo of using unmanned robots to kill people!
I've been mystified why people haven't taken more advantage of it. I'd figure it'd at least be marginally more acceptable than strapping a bomb to some brainwashed kid and sitting them on a bus full of innocent people.
I don't see any taboo involved, hell, if anything it should be less taboo to send out a machine to do it than to send a squad of soldiers in. But I mean really, for under a grand I could see having a flying bomb to just land in a busy area, no fuss, no muss, big bang. Do it a few times and you'd be able to trigger a panic just flying an unarmed one around. Though thinking about it I suppose it might actually be cheaper to strap the vest to some random kid.
If we had flown in a squad of troops to do the same thing there would have at least been a fire fight through the building and likely the extraction site as locals responded to the intrusion. Think black hawk down for how well that can go.
If you're going to argue against the strikes I'd suggest at least taking the angle that some how these people shouldn't be killed in the first place. It's about the only argument I see holding much water.