What's a threat to Canadian unity isn't Alberta, but it's pushing Alberta isolation like this that's doing it.
It seems like only 20% of Alberta actually wants succession, and a lot of it is conditional on BC joining them, which is basically a nonstarter for BC anyways.
The threat to Canada is Alberta feeling isolated and articles like this furthers such sentiment.
Hard to call Canada not right wing when basically 90% of the country is voting for central right and far right parties. Liberals haven't been even slightly left leaning for a long time. The most generous way to describe them is a party that uses left leaning policies to achieve right leaning goals.