Out of curiosity, how is the housing & health care situation in those conservative provinces compared to other provinces (like Quebec, where I live in)?
At least for housing I see the average home prices in each category (condos, townhomes, detached) still higher in Vancouver than Toronto (when googling a bit, I found https://wowa.ca/reports/canada-housing-market with some data. But there's probably lots of real estate related sites with more).
Good question. Let me know if you find some. My assertion is anecdotal, I have FOAF doctors who have moved to BC.