First-past-the-post must go! - First-past-the-post delivers majority governments to parties with 39% of the vote - Fair Vote Canada

And the biggest problem with first-past-the-post isn't even fully elaborated here, the fact that it is the main cause of the two-party polarization system that's the cause of many, if not most, of NA democracies' ills, the fact that it eats more fringe views, pits people against each other in two umbrella teams with no nuance, and solidifies the political establishment.