I have not seen any black or brown guy getting skin cancer. Melanin is a natural sunscreen. People who live in sunny areas evolved to have more melanin so that it protects them from constant exposure to the sun. Where people from northern latitudes evolved lighter skin so that they can absorb more sunlight. There are people like world-famous surfer Laird Hamilton who stays in sun all the time without any sunscreen and white and is perfectly healthy. Is diet causing skin cancer for some white people, where the skin is their weakest part? I heard the argument that in Australia there is no ozone layer, and it causes skin cancer. Which is completely false. Personally, I never used sunscreen, and I will be in sun a lot of time. What do you think?
Edit: My theory is that people of color getting skin cancer from sun exposure is almost zero. Skin is an organ same as the liver or lungs. Most people in this modern age are eating a Junk diet. Once you screw your body to a point of no return, your body starts to become dysfunctional. After that, some cells will start mutating and your body can no longer repair. Cancer starts forming. It can start in any organ. For example, my Aunt never smoked and was never exposed to passive smoking. But she died of lung cancer. As I told skin is an organ as well and white people's weakest link in the body is their skin because of very little melanin. Cancer can start in their skin. You can also see skin cancer deaths have increased significantly since 1970 in the UK where Sun doesn't shine too bright.
I love science. Science is wrong many times. The most recent blunder is Margarine. A few years back US FDA banned it because it is loaded with trans fat. But years prior to that it was considered as the holy grail for heart disease. And there are well-known blunders like doctors advertising cigarettes.
PS: I am not targeting anyone personally. But some people are assuming they are smart by using expletives. I am just posting my view.