True. It is quite presumptuous. Canada doesn't want these guys. Ontario runs things and won't put up with competition from New York or Chicago or Boston. Quebec's position in the confederation is shaky and they don't want anyone diluting their influence in the country. The Maritimes are supported by the other provinces and couldn't bear to see their position jeopardized. However much Canadians like taxes and subsidies, nobody up there is going to want to pay for the problems of Detroit and other American cities.
For all the talk of the Civil War and the "Red State/Blue State" divide, the American revolution marks an even greater division, the great gulf between docile, timid Canadians, and brash risk-taking Americans. So the whole idea is a foolish non-starter. Seen from Ottawa and most other Canadian cities, New York, Chicago and Philadelphia don't look that different from Dallas or Phoenix or Houston.
Canadians like taxes??????