The relatively moderate CPC can't get over 40% in Canada, and that's with one of the strongest performances for a conservative party among non-whites in the western world.
The GOP will get maybe 20%. A moderate GOPer could be elected in AB/SK/MB but the rest would be safe Dem.
At the very least, the right-wing parts of Canada are generally neutral on abortion, gays, and support universal health care. That would make a lot of Canadian conservatives centrist on the American political spectrum. In places like rural southern Ontario, moderate CPC voters combined with the fact that the left-leaning vote is already at 50% in Canadian elections would give the Democrats large margins of victory.