Is it as simple as "negative vs positive"?

[Freelancer]

8. What would Darwin say? ...

Probably Darwin would say that there are so much negativity and crotchetiness in Americans because it was helpful to survival, and people like that made more people.

Personally, I think some Republicans ate too many paint chips as babies. Seriously. Read the long term symptoms of lead exposure, and it sounds like a right-winger to a T (visualize Louie Gohmert). If part of a generation was poisoned by lead in a borderline way, and it affected all of their brains the same, later on, wouldn't that group see the world in a different fashion -- slightly skewed, but common to each other?