Your map is quite visually arresting, but just at a glance, I have two problems with its accuracy.
Sudan (Darfur and the 30+ year war between Christian Africans and the Muslim government).
Myanmar (a rather brutal dictatorship, which despite its brutality is unable to completely suppress various 'warlords' and rebels).
Is the murder rate here a self-reported figure taken at face value from official government sources?
Perhaps we should instead have a map of premature death due to violent acts including those of any government upon its citizens. I think the figures from Sudan, Myanmar, Zimbabwe, China, and even Saudi Arabia may look more bleak than they appear here.
However, despite these concerns, the map still certainly helps your argument. The Barbados is a democracy and has no internal war going on.
And it is a part of North America.
The idea of the sacred is quite simply one of the most conservative notions in any culture, because it seeks to turn other ideas - uncertainty, progress, change - into crimes.
Salman Rushdie
This rudderless world is not shaped by vague metaphysical forces. It is not God who kills the children. Not fate that butchers them or destiny that feeds them to the dogs. It’s us. Only us. - the character Rorschach in Watchmen