Limiting our government's entangling alliances with other nations does not imply (nor has Buchanan ever implied) that we should also limit trade among ourselves and the companies and individuals of other countries.
A quasi-isolationist foreign policy does not, and has never meant, pulling up the drawbridges and becoming completely self-reliant.
It means limiting government to those few necessary functions and allowing individuals and corporations relatively free reign in their interactions with others.
Just because the neocons seem to be able to come up with dozens of reasons why we desperately need to expand our entangling alliances, does not mean that we should do so.
Ahhh, there's that magic word!
Pat needs a new euphemism for Joooooooooooooos already.