"Because what a lot of people don’t understand is that action must be taken against people like the Death Eaters. The sooner the better, because an intolerant group is one that fundamentally will now allow the rest of the world to live in peace. Societies need to make it clear that intolerance won’t be tolerated and apply social pressure not to express them, because otherwise those views will inevitably spread like cancer. And the inevitable result of that spread is violence, be it social, physical, political, or economic. Once it becomes entrenched, you’re too late, and the only thing left to do is to get rid of them by force."