Circumcision has been shown to prevent HIV transmission during HETEROSEXUAL sex. It has been shown to NOT have the same protective effect during HOMOSEXUAL sex.
NOW do you understand why they want to outlaw it in SF and why they tried the same thing in Gay-Marriage-Massachusetts?
Homosexuals hate it when heterosexuals have an advantage over them, like, you know, procreation.
Circumcision does not prevent HIV transmission in any form of sex. Only abstinence and monogamy prevent HIV. The evidence for alleged health benefits of circumcision is pseudoscientific crap, just like that for anthropogenic global warming.