I didn't say there was no difference in sensitivity or sensation. I said there was no difference in sexual disfunction or sexual pleasure. And there is none. No proper study has ever found one. So, your argument about biology might have some weight if we were dealing with starfish, ocelots or some animal that we can't just [rulex]ing ask.
So, even though sexual pleasure is linked to levels of sensation, and even though you accept that circumcision reduces levels of sensation, you still deny that circumcision will reduce sexual pleasure? Cognitive dissonance, much?
Now, let's be clear - "reduced sensation" does not mean "impotent". It does not mean "completely insensitive". Of course not. But it manifestly (indeed,
obviously) reduces sexual sensation, because it removes sensitive parts of the sexual anatomy, and parts which functionally interact with the sexual anatomy. You might argue that because the guy has never known any difference then it doesn't matter, but that strikes me as an argument mired in a lot of rather glaring problems.
On what rational basis can the removal of sensitive and functional parts of the male anatomy be justified? Even if the difference is slight, that does not mean it is something that should be pursued. The null position is to leave the foreskin intact, and so it's up to you to make the case that this is something worth doing.
Instead, when we do ask men, they report No Difference in disfunction or pleasure.
Do these studies measure pleasure or sensitivity levels in men circumcised in adulthood years after the operation was done? I don't know the answer to that, so I'm interested. What's the study methodologies?
Your desire to ignore the best evidence we have about circumcision's effects appears to be inconsistent with the desire to develop the most objective and informed opinion possible. Instead, you rely on "biological" evidence because it fits your personal prejudices.
And you're not doing precisely the same thing?
Why did you put "biological" in quotes? Is this not a biological issue for you? At all?
If your hand were on your leg, would it be a foot?
Not an analogous. Get some critical perspective - if the Scientologists or the Raelians were pushing adherents to cut off a functional and sensitive part of their infants' anatomy, would you still support it? Or, to re-pose the question in a different way - on what grounds can circumcision on infants possibly be rationally justified?