didn't watch the video but it's pretty simple and disheartening as to why we can't cure cancer as a whole
If you think about just how many genes are in the human genome and all the simple ways they can be altered and accidentally result in overgrowth of cells, it would seem nearly impossible to figure out how to cure cancer as a whole. There won't be no one way to solve each type of mutation that results in overgrowth of cells i.e.: this was a result of a mutation of some signaling pathway not being turned off while another might be a mutation to a gene like p53 of the cell cycle and its inability to stop one of the growth phases for a type of cell.
Add in all the different types of cells and tissues and genes in our bodies and it's hard to cure cancer from a preventative aspect. I do think over time we'll get better and better at treating cancer and coming up with innovative treatments. but foh if you think they're going to come up with a vaccine, foolproof diet, or something preventative to stop the presentation of cancer. I'm sure we'll also get better at figuring out what reduces/increases the risk of certain cancers (i.e. smoking and lung cancer)
I don't know just my two cents. If you really think there's some sort of diabolical thing going on, more power to you

There may also be some way out there dangerous treatments untested or in early stages. I saw one recently where they were giving the polio virus and it was resulting in the shrinking of certain types of brain tumors but it causes a fukk ton of inflammation prior to the shrinking of the cancer. One woman passed away due to maybe getting too much of the Polio virus in her body, but for some other people it's worked.
And if you play the percentages its like 1 in 2 men and 1 in 3 women incidence rate of cancers. That incidence rate is so high it kind of explains that cancer can show up in so many individuals there's not some underlying cause that we can just fix with one stroke. I think we can get better with approaches and treatments. Also finding a way to make the cost more affordable even for those individuals with insurance to seek the best treatment
/serious post
hopefully some of that made sense, it's been a while since I took a genetics course or something like that