Is the Bloc Quebecois accomplishing its mission in making the Canadian Confederation dysfunctional?
It would not be so easy for Harper to demonize the idea of a "coalition" if it did not include the BQ.
A proportionally small number of Quebec voters elect a large number of BQ MPs that wield national influence. (49 /75seats, or 65% of Quebec's seats with 38% of the province's popular vote)
Aided by the first-past-the-post voting system, the BQ seems to be fulfilling its raison d'être.