>>12230454Large size is a negative in hunter gatherer societies the study is already linked a few posts up.
It doesn't matter how big and strong Bjornsonn and Richters are, a single manlet will kill them very quickly in a spear fight without much effort It doesn't take much strength at all to stab someone with a spear and being larger does not help you survive being stabbed and having such a large slow and strong body is a disadvantage in a fight with spears and knives where quickness is paramount. Meanwhile larger men are slower, require far more food to survive, are easier to spot when hunting and they can not run for long distances so animals can get away more easily, and their strength does not give an advantage in the environment.
A 5'5" 130 pound small slender guy with a spear will kill a 6'5" 250 pound guy big strong guy with a spear in a spearfight the majority of the time. It was only when farming and armor came around that men became larger, and now with firearms being larger is worse again. The only advantage larger men have is that women are more attracted to them, but that has been shown to be cultural as well and will be gone in the near future.
Males are smaller than females in the majority of animals because boys are SUPPOSED to be smaller than girls. Species with male larger dimorphism are rare and abhorrent, they violate everything proper about sexual dimorhpism. It's honestly disgusting to see.