I still can't believe people are discussing "hitting". It is very much more efficient to snap the little bastards necks.
I love the nech snapping idea.
Would probably be best to pick your moments though. Like say you have one not really in the group coming towards you. This would be a moment to neck snap..
Maybe afterwords you can toss the toddler into a small group of them to immobilize for a few moments. Perhaps even use the neck snapped as a weapon until another nech snapping oppertunity comes along.