1. Do not know how other countries work. A lot of stuff seems far fetched until you learn about about the places where it already happens.
2. Don't know much history so essentialize the last 50 years as the way it always ways (similar to 1)
3. Believe in "monotonically of virtue": i.e. that various compromises and half-measures at least deliver half the value.
4. Lack a sense of a urgency, or have faith that "at the end of the day, American institutions are good will work it out".
5. Might be more "idealist than materialist".