Major negotiations, with thousands of jobs, billions of dollars of trade on the line and the Usual Suspects on here zero in on -- "socks".
Very odd. They are obsessed with JT's socks. Over and over, day after day.
What does it mean? 
It is all about conformity-- their desire for it.
The socks obviously represent a level on non-conformity that drives them crazy, keeps them awake at night, draws them inexorably back to the keyboard to howl about hosiery, while others debate economic statistics and geopolitical strategies.
Conformity is the lifeblood of collectivist societies like North Korea. 
Trudeau's socks, by meandering ever so slightly off the path of conformity, trigger a deep psychological response in the Suspects, a threat to their sense of order and obeisance to authority. Without that, in their view, their is only anarchy, barbarians at the gate.
For people the Suspects and Kim Jong-Un, there is really no choice.
 Sock Attack, Sock Attack, Sock Attack!!