She puts out a pretty good screed, but she completely skips the little piece of reality that happens if something happens to the oil supply. It won't be pretty, but there is a lot of interesting technology coming. As oil gets more scarce and the supply more tenuous, other energy technologies will come on line.
Wars will be with us until the end of time. Get used to it!
Maybe, but I believe if capitalist democracy spreads throughout the world, wars will become an extremely rare occurrence.