OK, so what kind of individual-in- group behavior will be selected? That behavior which most benefits the group.
Imagine an 18-year-old child crouching in a muddy ditch somewhere in France. Someone blows a whistle. He leaps out of the ditch and runs headlong into a Maxim gun and is blown to pieces. Why did he do it? Because the willingness to die for an abstraction, or someone he has never met, increased the fitness of his ancestors.
People are NOT "born to be good," OR "born to be bad," people are born to act in ways that increased the fitness of their ancestors. What they do tomorrow depends upon genes/environment (not genes).
We are entering a many-decades period of declining resources. Capitalism can't run backwards. When the supply lines collapse, people will arm themselves and take to the streets.
Now the Unites States will look like 1933 Germany. Rush Limbaugh-types will form personal armies and march on Washington. The people who are running our government must either take what they need from another country by force else or they will be overthrown.
Now the Unites States will look like 1939 Germany. Perhaps we will invade Canada like Hitler invaded Poland. Ultimately, it will be a global war of all against all for the remaining resources.
- Jay Hanson