I'm really sorry to hear of all those people near to you having cancer, but what you just said is all quite deranged in my opinion.
I do have a bit of back story on this myself, but I'm not going to get into it here other than to say cancer is fully reversible, and I couldn't disagree more with everything you just said. But arguing won't do either of us any good. I'm just putting information out there, and how people react to it is entirely their choice.
“It's easier to fool people than to convince them they have been fooled.”
It certainly is - and I'm honestly no longer sure which side of this disagreement you are really on!