They should just do it. Hold a vote of the people. Trudeau is not a Lincoln - he won’t go to war to preserve the union. Alberta could then at some point apply for statehood.
A bigger Montana and Saskatchewan could be greater Dakota
I see more electoral votes
I have several friends involved, and am in the fb group. Apparently Canada has something in place that allows them to leave.
That's an option but I think they are talking about an independent state. Frankly given the current stupidity going on in DC and the rest of this country I can think of why anyone would join it.