The same way they ignore the link between The Pill and Breast Cancer:
Breast Cancer Awareness Month ignores the pill’s link to cancer.
>http://www.hli.org/2011/10/breast-cancer-awareness-month-ignores-the-pills-link-to-cancer/<
Surgeon: birth control pill a ‘molotov cocktail’ for breast cancer (2010)
>https://www.lifesitenews.com/news/surgeon-birth-control-pill-a-molotov-cocktail-for-breast-cancer/<
From life site news aug 2005
GENEVA, Switzerland, August 8, 2005 (LifeSiteNews.com) - A press release issued on July 29th of this year by the International Agency for Research on Cancer (IARC), a division of the World Health Organization (WHO), declared the little publicized classification of combined estrogen-progestogen oral contraceptives (OCs) as carcinogenic. The IARC placed the contraceptives into their Group 1 classification, the highest classification of carcinogenicity, used only “when there is sufficient evidence of carcinogenicity in humans.” (emphasis theirs)’