Vancouver has a metro population of 2.6 million, a fair bit of wealth, and negligible pro sports competition apart from the NHL Canucks. But its 40 year old, 55,000 seat stadium is not suitable for baseball. And I don’t know of any one billionaire here that would be interested in spearheading a MLB effort.
https://globalnews.ca/news/7880261/john-horgan-support-possible-major-league-baseball-team-vancouver/
https://biv.com/article/2023/08/pursuing-mlb-franchise-popular-bc-hosting-fifa-world-cup-poll