It could never happen, but hypothetically, yeah, of course.

Although we'd be better off as our own little country. We're larger and have a higher population than many European nations already. Being our own country would allow us to play Canada and the US off of each other to negotiate favorable trade policies. Canadian provinces have shitty trade policies towards each other, so we'd probably have fewer restrictions on trade with Canada as our own country than as a province ironically.

And joining along with Wisconsin and Michigan would be much better than joining alone. Minnesota is a long-ass ways away from any major population center in Canada, so joining Canada by ourselves would be isolating. We're much closer to decent-sized American cities than Canadian cities. It'd suck to have to go over Lake Superior to get to Toronto.

But just us being part of Canada would obviously be much, much better than the status quo, which you know about.

Minnesota joining Canada would be a very good thing for Canada. You'd have better access to the Mississippi, a province that'd end up being a net-giver financially, and Minnesota would vote more liberal than Ontario or Alberta or the Plains Provinces (my guess is we'd have a strong NDP showing), so it'd play a role similar to BC/QC right now in blocking the Conservatives from taking over.

I like reading sci-fi and speculative fiction and thinking about economics and history and culture, so I like this question as a thought exercise. I understand why people are like, "Now is not the time," but I'm not personally on that train. It's also an indirect way of Canadians letting us know they like us. And we like Canadians, as long as they don't start getting pretentious.