We have higher HIV prevalence than Switzerland, France, Spain, Italy, Iceland, Canada, Netherlands, Ireland, Denmark, United Kingdom, Belgium, Finland, Germany, Greece, Norway, Poland, Sweden: Countries where routine infant circumcision is seen as bizarre and unnecessary.
The 100+ year experiment is OVER. Despite circumcising ~80% of our males, the US has more HIV and other STDs than our developed neighbors. The foreskin is there to act as an immunological barrier. Remove the foreskin and you remove part of the immune system.