This exchange between imanaccount247 and tctapek is incredibly fascinating.
One the one hand, we have a female who has a very accurate understanding of evolutionary biology, evolutionary psychology, genetics, and logic. Her arguments are logically coherent and validated by centuries of empirical science.
On the other hand, we have a male who has violated Occam's Razor so many times that he has completely annihilated any hope of a coherent hypothesis. His arguments imply conspiracy theories behind the formation of family, society, government, and history itself. All reason is abandoned, and science ignored.
Now the question is...does it really matter which position the male took vs. the female? One of these arguments is far more coherent than the other. Which position an individual supports reveals far more about the person than about the true nature of sexual dimorphism, since the laws of the universe do not suddenly change to cater to the opinions of a few misinformed primates.
EDIT: Hello tctapek! Thanks for the downvote. In case you one day want to educate yourself about the science behind human biology (and its numerous resultant consequences), here are a few books you'll no doubt find elucidating:
1. http://en.wikipedia.org/wiki/The_Selfish_Gene
2. http://en.wikipedia.org/wiki/The_Red_Queen:_Sex_and_the_Evol...
3. http://en.wikipedia.org/wiki/The_Moral_Animal
For some advanced reading, you can move onto the Extended Phenotype by Dawkins, and the references contained therein.
Enjoy, and remember, the world is yours to discover! Science will always be waiting.
EDIT 2: If you lack the patience for all that, here (http://edge.org/memberbio/helena_cronin) is an expert in the field who explains all of imanaccount247's assertions in video format. Enjoy!