I have a fair suspicion, that the reasons why most males in the US were/are circumcised was societal attitude towards masturbation.
I have heard some ridiculous suggestion that people lacking foreskin must use lubricants while cracking one off.
Buy a lubricant or put saliva all over your equipment?
Make masturbation cost.. money and complicate it?
To me, being able to relax somewhere in private and crack one off seems like the best proof that there's a loving God.
Most joyful cultures around the world I believe roundly condemn anti-masturbatory practices.
Here in eastern central Europe, circumcision is about as common as HIV, that is, very uncommon.
Masturbation is rather prevalent, I think.
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IMO, Jews should not resort to circumcision either. It may be in their religion, but nazis performing foreskin checks back in WWII found out many a hidden jew. Jews will continue to be hated as long as Muzzies and nazis are going to be around, so I think it's advisable for those who don't look completely like Jews to exercise some discretion. Muzzie murderers when taking hostages have been known to kill jews out of hand.
I'm sure God will understand their motivations.