People who are circumcised with argue it is fine, nothing to worry.
People who are not will usually adopt the OMG, its wrong, unless it's for medical reasons.
Men are massively over-protective of their penis and sexual prowess. Any mention of the other way will get them all riled if anyone else thinks their penis is better.
Men will always say "My Mrs has never complained" well, take it as a fact that a large number of women will probably have a preference, and just don't tell you out of protecting your feelings. Some women will have no preference, and will just tell you that your way is best. Others will genuinely prefer one way and be with a guy who is as they want.
This means that the argument will never be answered fully, and usually ends up in people arguing, and the discussion decends into chaos.
Some people are circumcised, some are not. Both get on with using their penis however they see fit, and I am pretty certain they have a lot of fun doing it.
Sooo, lets all just agree to love our own penis and not worry what colour the grass is like on the other side.
