From what I have researched circumcision does not just remove the skin. The doctor also severs the ligament (called the frenulum) which connects the forskin to the penis. In doing so, that cuts off important lubrication...similar to when a woman gets wet.
More importantly, the nerve connection between the head of the penis and the glands in the brain are short-circuited. I often hear women complain about men who only think with their member. Imagine how different it would be if men were hardwired properly from their base desires to their spiritual ones in the brain. My goodness we might breed intelligent men...the key ingredient that women claim is missing in the men they date today.