Good point on the first paragraphs. The why seems to be that it’s mostly about pleasure.

Although not essential for survival, pleasure seems to be programmed in us as a species, so the body evolving this to give women the balance of a complex pleasure organ to make up for the pain — in so many levels — they go through during birth.

So maybe nature was like “they suffer a lot during birth and pregnancy, let’s give them a clitoris that gives them REALLY good pleasure that the male counterpart won’t be able to ever experience or comprehend.”