Sorry but you are wrong, or if I am being charitable, misunderstanding the details.
The only credible evidence for reduction in HIV transmission due to circumcision is for infection of men during heterosexual sex with a woman. There is no evidence that circumcision reduces transmission for homosexual sex nor for infection of women during heterosexual sex.
So the critical issue isn't overall infection rates, but infection rates of men from heterosexual sex. And those rates have reduced dramatically over the past decade, indeed they have halves since 2005.
And in fact overall infection rates have been gentle reducing over time, so for example in 2016 6,095 people were diagnosed with HIV in the UK compared to 7,892 in 2005. And yet levels of circumcision have also reduced in the sexually-active population during this time.
But, of course the best way to prevent infection is to use a condom.
The WHO has never made an argument that circumcision is useful for preventing HIV among Men who have sex with Men (MSM) nor has it argued that it is useful in preventing HIV among drug users, in case you were going to bring that into the argument. And the WHO also highlighted that the best way to prevent an infection was to use a condom.
My contribution was only intending to focus on the WHO policy regarding promoting circumcision among men having heterosexual sex as one measure to control HIV rates in certain parts of Africa and how that influences black communities living in the UK. Given migration patterns and the different cultures in the UK and the WHO policy in relation to circumcision of heterosexual men in parts of Africa, it seemed that people from that part of the world living in the UK may have an interest in the UK not banning infant circumcision, if infant circumcision has lower risks compared to adult circumcision.
And yes I agree that MSM remain the group most affected by HIV with 47 per 1,000 living with the infection according to the HIV in the United Kingdom: 2013 Report.
The same report reported that heterosexual Black-African men and women were the second largest group affected by HIV with 38 per 1,000 living with the infection (26 per 1,000 in men and 51 per 1,000 in women). It also said that of the 31,800 (29,700-34,600) black-African men and women living with HIV, 23%remained unaware of their infection in 2012 and that over the past five years, an estimated 1,000 black-African men and women probably acquired HIV in the UK annually.
According to page 16 of HIV and Black African Communities in the UK June 2014: A POLICY REPORT - at the time of writing, a total of 40,251 African men and women have been diagnosed in the UK. The report also said that diagnoses reached a peak in 2003 with 4,063 black Africans being diagnosed and since then the number of new diagnoses has declined year on year. In 2012 the total was 1,522, the lowest total since 1999.
However, the report states there is consensus that the main reason for this decline in HIV diagnoses is a fall off in migration from sub-Saharan Africa, a result mainly of changes in UK immigration policy.
It indicates that over time the proportion of new diagnoses in the UK of HIV acquired in Africa is declining and the proportion of HIV acquired in the UK is increasing amongst black African men and women in the UK, but as an absolute number of new diagnoses it has remained fairly constant over the last few years, at about 1,000.
And your response did not address the other issue I raised about the BMA guidance on what is in the best interests of the child. It may well be that over time the autonomy of the child will take precedence in the minds of parents rather than a shared cultural heritage and parents will decide to wait until the child makes an informed decision as a teen regarding circumcision, even if this carries more risk of complications compared to circumcision as an infant. We'll just have to wait and see. In the meantime the BMA currently seems to think that it is in the best interests of the child in this particular instance, to be brought up in the culture of his parents.