Look you are moving goal posts here.
The penis being an external organ is naturally a massive evolutionary disadvantage for human males, especially when we compare ourselves to other primates and apes. The human penis is disproportionately large and exposed. Not to mention the weird psycho-sexual relationship between male self esteem and penis size, appearance and function. Also when it comes to medical examinations, yes it is easier to conduct an external medical examination on a penis then on a vagina, but when it comes to medical complications or internal examination it's a incredibly unwieldy. Things like catheters are incredibly painful, and the elimination of kidney stones is simply excruciating.
I'm not saying "It's great to have a vagina", I'm just saying having a penis is not all "lol I can pee standing".
Now on getting sex. This where you are really moving the goal posts.
You moved the having sex from getting relationship material. There is nothing wrong with not banging anything that looks attractive, but would be a terrible relationship choice, but it's about having choice. Women have greater access to that choice, to the choice of recreational sex or relationship sex or procreation.
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I remember a very interesting study done by a big dating website. The study showed that when it comes to pursuing the opposite gender men have much lower expectations and demands while women have much higher expectations and often feel that they have settled with a man beneath their "standards".
http://blog.okcupid.com/index.php/yo...online-dating/
So it's not that men have no standards. They just have lower expectations.