Well, it started with xenophobia and identifying one religion as the source of societies evil...
There are many sources of evil in the world. Tell me....which source graces societies with the oppression of sharia law in this world? In whose name do people behead innocents for non-belief? What is the source of evil that causes frighteningly large numbers of believers in countries around the world to agree with the death penalty for insulting their religion?
The best chance for survival of cancer is early detection and treatment. No oncologist in the history of medicine has ever said, "Ah, it's just a small tumor. Don't worry about it."