Why is democracy NOT democratic when a liberal loses?

When Harper won his majority mandate, with 39.7% of the popular vote, for years we were subjected to non-stop braying about how a majority is not a majority with only 39.7% of the vote.

Justin "wins" with 39.5% of the popular vote and we are once again subjected to non-stop braying about how this was a clear and decisive win with a strong mandate.

Now Trump didn't win the election, because of the US's electoral system.  Or he did, but it doesn't matter because Hillary "won" the popular vote.

Whining about the rules of the game, after you lost, are just the dumbest arguments possible.