He wouldn't do it.
He would an alternative method, as usual.
and the Reason why is??
he would talknojutsu the $hit out of them all
Naruto already proven to Itachi that he would have chose a different method.
Why would he kill a little girl, a fodder, and his emotionally needy friend?
He's not itachi...
tnj them to death
Without Plot no jutsu powering his talk no jutsu, he would've refused to kill them and attempt to talk them down.
He would fail, War would break out and many would die because of his inability to do what is necessary