Circumcision was used in some ancient culture also to limit mens ability to please themselves so that they will more likely impregnate their women thus they create more of their people. Most Europeans understand that circumcision is mutilation. It is a barbaric practice. Ones character and nationality are not determined by a small piece of skin. Second, there are good reasons to have a circumcision.
Circumcised men are less likely to get and transmit sexually transmitted diseases.
The small pocket created by the redundant skin can collect moisture and harbor infective organisms. On the other hand I have met Jewish physicians who were against circumcisions being performed by untrained rabbis because this resulted in unnecessary complications. About 350,000 are already infected. Anti-Semitism was an invention created at least partially by the Tsarist authorities as a way to divide the outlying regions of the Russian empire. Also valuable part of a man that provide pleasure are lost in circumcised men.