This “at the stroke of the pen” idea is fantastical. Actual Canadians would have next to no interest in this. Whole provinces of Canada don’t even want to be part of Canada so their appetite for having the EU parliament and Commission anywhere near them would be slim to none. Having 250million Europeans eligible to migrate to Canada would similarly be dead in the water even if a few people in Toronto and Quebec might warm to the idea of going the other way.