True Left

The westerners use the life expectancy as their argument to defend the Western Civilization. Which according to them is not health hazard. And they defend the Western Civilization because it make the "Africans" not to experience starvation during colonial era. So they say that Western Civilization increase the health of the "non-Westerners", not health hazard according to them.

How can we answer this? My answer currently is, the Western Civilization resulting pollution globally and unhealthy junk foods.