Huh? F.A. Hayak was 100% opposed to trade protectionism.
First, this is not a simple protectionism issue; there are important moral elements (consuming goods manufactured by political and religious prisoners), and international conglomerates have agglomerated more power than most governments.
Second, Hayak has not mapped all of the routes, since in his atheism he bound himself in the depths of ignorance on the only issues that matter.