again, i don't think we should punish ourselves by snowing ourselves in. have you ever been to ottawa in february? i don't recommend it. i remember walking to school past 20 foot snowbanks, and it's really hard to cross the street when you can't tell if there's anything coming at you or not on the other side of the snow. it's a barely inhabitable city.
go south for the winter if you can. don't punish yourself. it's not worth it.
canada's economic and social and political response needs to be to advance our self-interest, whatever it is, and not to try to hurt the americans in retaliation. this, too, shall pass. it's a few more months, and trump is gone.