(1) Alexander Supertramp (the name that McCandless preferred to go by) spent his entire time in the Alaskan "wilderness" in the summer - when edible plants and game are plentiful.
(2) He spent his entire time in the Alaskan "wilderness" 20 miles from a highway.
(3) The "impassable" river he blamed for his isolation and inability to travel out of the "wilderness" was easily passable by a hand operated tram less than a mile away from where he was camped. In other words - he walked to the river, figured he couldn't get across it and walked back. If he had spent an hour or so trying to find a fording point he would have found the tram.
(4) The entire time he was in the Alaskan "wilderness" he was a few miles from a Park Service emergency hiking shelter stocked with food and supplies.
If he had bothered to invest in a map, he would have survived. He starved to death partially out of stupidity but also partially out of sheer laziness.
"I personally believe that U.S. Americans are unable to do so because uh some people out there in our nation don't have maps and uh I believe that our education like such as in South Africa and the Iraq everywhere like such as and I believe that they should our education over here in the U.S. should help the U.S. or should help South Africa and should help the Iraq and the Asian countries so we will be able to build up our future for."
She may be an idiot, but at least she's still alive.