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. And those who are - are FREE to do that. 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.
Antisemitism ususlly starts there - where are sionism has deep roots.