Indeed. I've killed 100% of cancer cells in culture by adding bleach to the growth media. I would never suggest that people consume bleach to try to cure their cancers.
Some interesting stats here showing Whites and Blacks as having the highest rate of breast cancer and American Indians, Hispanics and Asian Pacific Islanders having the lowest. The American Indians and Hispanics consume allot of peppers, know nothing about the Islanders diet.
https://www.cdc.gov/cancer/breast/statistics/race.htm