IMO international #trade is nowadays too complex in laws + systemics 4 most companies and people to engage in or even understand. Solution: Simplify!
One key barrier to rules simplification is related to the willingness and ability of national and other bureaucracies and admins to accept or adapt
As a result:
A Labyrinth of bilateral trade agreements, free trade areas on top of the WTO rules!!!
Hence IMO free trade and real globalization "suffer" because:
(1) "the man in the street" probably has or works for a small company that does not partake in global (or even inter-national) trade
(2) not only the man in the street but most people around the world cannot understand all this Labyrinth of PTAs, FTAs, WTO etc.