Darwin didn't say it because Darwin didn't coin the phrase "survival of the fittest". He said "natural selection".
I don't get your point. Regardless of whether they were wiped out by smallpox, they were still morons. Are you trying to say that small pox is the only reason they didn't advance
, if so, what was their excuse for the 40,000 or so years that predated the "white invasion"?
Take "care" of the land? They didn't do anything with the land! It sat there, baron as always. That's taking "care" of land is it? Europeans were hopeless, yet invented some of the most sophisticated farming practices ever ... ok
The rest of that post was hippy bullshit.