The details are irrelevant, however, as Canada is still one of the many exceptions to the Duverger’s law (which is not a law, but a silly generalization from one example). Plurality voting does indeed result in small or spread out parties being at a disadvantage, but it does not result in a convergence to some magic number, like 2.
Knew about the merger, did not know it significantly improved conservative electoral success. Good detail to know.
The details are irrelevant, however, as Canada is still one of the many exceptions to the Duverger’s law (which is not a law, but a silly generalization from one example). Plurality voting does indeed result in small or spread out parties being at a disadvantage, but it does not result in a convergence to some magic number, like 2.