I disagree, although obviously this kind of manipulation and even ultimately what is being manipulated is going to be complex and fraught with false steps and unknowns.

While you may be right that our current genetic state, attained through generations of ruthless competition and selective pressures, is optimal for some things, it is harmful for others. Notably, the health of biosphere and many millions/billions of other humans. What good does nation-building do if our actions destroy each other through war or create an ecosystem unable to sustain advanced life? I would rather engineer for increased prosocial behavior and take our chances down that route than where we are headed now.