Heart-Shaped Locke-t?

Locke never uses the words "good" or "bad" when describing human nature, but he does represent some instances where humans are not too "good".  He describes Americans and the land in the Americas as almost primitive and lacking in culture and civilization.  Probably the most notable thing Locke says about Americans is that they are "rich in land and poor in all the comforts of life" (19).  This seems to be as a "bad" statement about mankind, but a harsh reality.  Locke never sugar coats that fact that humans are human and have good qualities and bad qualities.  Playing off the same quote, Locke makes some statements about resources as well.  He never says the supplies we need are hard to find, it is just that once we find it, it is our right to keep it (property rights so to speak).  The Earth supplies us with the resources we need and enough of them to survive, but there seems to be some underlying idea that land is somewhat hard to come by, which is why once someone obtains land, it is theirs for the long-haul.  A similar idea can be applied to what Locke thinks of the environment.  Land  and what it produces is somewhat valuable, but what we do to it (labor) makes it even more valuable.  He flat out says on page 19 that "it is labour, then, which puts the greatest part of value upon land."  So it is the things that we humans do that adds value and purpose to the natural materials around us.