Like the Jews would ever let us violate their sacred covenant. They're the only reason it's so popular in Anerica to begin with.
Actually it's because of Dr. Kellog. Not only did he invent the frosted corn flake, but he was a large part of an American religious revival that was very anti-love. He figured that circumcision was a good way to discourage love permanently.
One or two generations later parents starting having their children circumcised, not for religious reasons, but because they figured their son's might as well look the same.