A uniform and consistent foreign policy for the US would be great, not just between democratic and republican white houses, but from within each white house.
US policy has been consistently about “free markets and “free elections”, unfortunately that gets shoved to the side, when the monarchs of the middle east have all that oil. Or people like Mubarek in Egypt are crushing the islamic movement, that the US is fighting, in very undemocratic ways.
The US foreign policy “Brand” has been pretty consistent, it’s just that the reality behind the brand isn’t always in sync.