That sleazy 'suicide argument' is used by growth-addicts when they know they can't deny the hard evidence for overpopulation. Here is a page full of related arguments used by these punks:
http://enough_already.tripod.com/cliches.htm
You obviously know little about John Muir. He was an aesthetic preservationist and the first President of the Sierra Club. Were he alive today, you'd be calling him a 'green weenie' and every other Creationist/nature-hater cliche. Read Muir's bio here:
http://www.ecotopia.org/ehof/muir/bio.html
'These temple destroyers, devotees of ravaging commercialism, seem to have a perfect contempt for Nature, and, instead of lifting their eyes to the God of the mountains, lift them to the Almighty Dollar.' (John Muir quote)
Little has changed in right-wing attitudes toward nature since that was written many years ago.
As for Roosevelt, he had to go behind the backs of greedy Republicans to save millions of acres of wilderness we take for granted today. But 'conserv'atives like Bush are itching to open up those preserved lands and share little of his values.
E.A.
http://enough_already.tripod.com/ If any other species behaved like Man we'd call it a plague.