Self-sufficiency  is  only  a  good  idea  if  your  goal  is  a  40%  drop  in  living  standards  across  Canada.

If  the  US  really  enacts  a  tariff  like  the  proposal  we're  going  to  be  a  lot  better  off  increasing  trade  with  everywhere  else  in  the  world  rather  than  retreating  inward  to  the  dream  world  of  self-sufficiency.