A boom/bust economy that was a Provincial welfare case right up until 25 years ago? And a provincial economy that is smaller than the city of Toronto and almost entirely dependent upon resource extraction and agriculture?

Sure, whatever.

And it is certainly true that Ontario's GDP would increase by 10% if Ontario were to be an independent sovereign nation. Indeed, Ontario sacrifices 10% of its income for the honour of flying the maple leaf and has been doing so now for almost a century.

Indeed, just kicking Quebec out would raise Canada's standings on the Amnesty International index and Transparency International index by removing the lion's share of political corruption in Canada. We'd be fighting with the Finns for 1st place (instead of our usual mid-top-ten position).