That's a really silly counter argument and you clearly haven't put any thought into this. Is the sword worse than a nuke since there are hundreds of millions more examples to choose from? Come on man.

On one hand you have robots who are ultimately controlled by humans. If the robot controllers are genocidal assholes then their commands will be carried out without question.

If genocidal officers order soldiers to be genocidal a few will aim up, some will straight up refuse and someone will tell the outside world what happened out of guilt.

In every possible way the ceiling for the humanity of a robot is the same as a human... But the floor is way way lower.

You send killer bots to wipe out a village they will. No questions asked.

You send humans to wipe out a village. They may or may not but if they did more than likely someone from that team will have a guilt trip 1 year or 20 years after it happened. It will not go unanswered