Caesarian births directly affecting human evolution

[Minimalist]

Human evolution in the Darwinian sense has been screwed since Homo Erectus began caring for injured members of the group.  We have skeletal remains showing healed leg fractures going back over a million years bp.  In order for that person to survive long enough to have the bone heal other members of the group/clan had to take care of him.  Other animals simply do not do that.  If a lion is injured in a hunt it either lives or dies on its own.