Priorities do change. The question is what spurs the change?I think you are unfortunately down a rabbithole. Priorities change. And policy changes with leadership.
Look at Trump. Within 10 years he and Stephen Smith completely changed enough minds on immigration to create new policy. Are you yelling about the GOP flip flopping? They changed on import/export policy, same?
The world has become, due to various factors, become less open. And various govts have responded to public sentiment and changed course. It does in fact, show, that democracy is in action and public concensus is working when parties align on policy. Trudeau was done not only because his act got tired, but his policy was out of step with Canadians. Parties are not governed solely by ideology.
The most fiscally conservative govt of the last 4 decades was the Chretien Liberals. To the point of cutting provincial transfers and enacting austerity measures. The next one was the opposite.
The Mulroney Conservatives introduced Free Trade, and the GST. The Harper Conservatives lowered the GST. And the present Conservatives want less free trade.
They all want to be elected, in a democracy that does actually mean paying attention to the voters.
Ideology on the other hand shouldn't change over night.
The Liberals changed (or perhaps suspended) their ideology overnight for the sole purpose of winning an election.





