We now know that neither Justin Trudeau nor any other Liberal prime minister will ever bring in electoral reform while the Liberals hold a majority-and that without electoral reform, no jurisdiction in Canada can ever have truly democratic elections.
We now know that neither Justin Trudeau nor any other Liberal prime minister will ever break with the Angl0/Euro/American "consensus" on the need for perpetual military intervention in the Arab/Muslim world.
We now know that neither Justin Trudeau nor any other Liberal prime minister can be trusted to do anything to prevent the climate crisis from worsening.
We now know that neither Justin Trudeau nor any other Liberal prime minister will protect the rights of working people to organize and to preserve decent wages and working conditions.
We now know that neither Justin Trudeau nor any other Liberal prime minister will make any serious effort to address poverty, given that doing so would require them to slightly reduce the profits of the billionaires who own the Liberal Party.
We now know that any progressive measures Justin Trudeau and the Liberal Party will pass will be tiny and incremental, and therefore worthless.
The Liberals are not identical to the Conservatives, but they are in essential agreement about the fundamental structures of Canadian society-both parties being irretriavably committed to the notion of Canada as a capitalist, militarist, and inherently unequal nation.
History has proven that the Liberal Party is effectively incapable of transcending the limitations on its essentially small-c conservative philosophy. At best, it can only be FORCED to pass the occasional decent measure when it is in governing in a minority and dependent on the support of parties to its left to stay in power.
Therefore, any case for widespread progressive support for the Liberal Party, as occurred in the 2015 election, has vanished.