They went a little right and have largely dumped Trudeauist socialism, but the Cloward-Pivenites have taken America way Left in the same time-frame. Canada didn't change much - we did.
I remember when Trudeau swept into power, much like Obama did in 2008. He was a communist and a hero to the masses plus a big fan of Castro. Trudeau screwed up Canada so bad that it took them two generations to get back to somewhat normal. 4 more years of what we have now will take two generations to correct as well.