There's been separatist movements in Alberta for decades. The provincial conservatives panicked after losing a single election and bent the knee to them and the Wild Rose allowing them a platform. Redford and Prentice are way more responsible for this than Trudeau.
Pierre Poilievre: "Ten years ago, there were no referendums in any part of the country to separate. There was no separatist movement in Alberta whatsoever. The measure of the PM is how he can keep our country united. And as a future PM, my mission will be to truly unite the country."