I don't think I stated anything too radical or far from the truth. It is simply how nature works for uncivilized species.
Do you honestly believe prehistoric humans were even remotely civilized or moral? Even in some supposedly civilized ancient societies with historic records, weak babies and barren women were taken out of town to die.
Even in the USA, we had slavery less than 200 years ago and women did not have the same rights as men until the 20th century.