Uh... first, I'm sure you've never heard anyone really take a go at the "well, you'd be defenseless without tools and hence are inferior to animals!" thing, and you're very proud of how clever you're being, but don't be. It's all about survival. We didn't have teeth, we didn't have claws, we survived anyway, and we graduated on to the civilization school of getting killed. Might as well say that if you defanged a tiger and tied its paws, it would be helpless, and hence it's a foolish, inferior animal.
Now, a better test might be to drop him out in the forest and see how long he lasts. Most of today's pasty console jockeys couldn't start a fire to save their lives without a lighter and at least two gallons of gasoline, and they'd probably put their eyes out trying to reinvent the spear. Me, I had Boy Scouts inflicted on me as a child, and of the insane survivalist/prison camp strain to boot (ever know a fishing line and hook could make an effective weapon?), so maybe I'm not being objective, but I think that'd be a more fair test of survivability, nyet? Let us go at what we're good at.
As for the other thing... yeh. Herding instinct again. Mobs are mobs, of course, but the vast majority of the time mob psychology is not representative of people as a whole. It's among the worst behavior we have, but just because it's extreme doesn't mean it's prevalent. Hell, that would mean that the guys on Jackass were model citizens, of perfectly normal intelligence.