Obviously all was not fair, but he tried harder than most mayos of the british empire to be fair to natives...
After he died they started getting treated like shit in pennslyvania again...
One looks back and wonders if there were more whites like Penn, could things have been different for the indigenous population?
Might I suggest The Rediscovery of America? It's a book that is essentially a re-examining of post-Columbus American history, but through a Native lens and in a way that actually assigns them agency.