Agreed foreign policy and the whole 'stops at the water's edge' Rule are separate matters. Likability is important, and them thar folks who exude unlikability suffer regardless of the topic that makes them appear that way.
When you read who his advisers are, they are the ones who swept the Al-Queada briefing under the rug in 2000 so they could focus on Saddam and their Wolfowitz vision of some sort of domino effect M.E. trading-partner-democratization-revolution ala S.E. Asia post WWII.
The bloody sods haven't a clue.