How would you approve of Canadian monarchs staying in Canada? Like, if Elizabeth II kicks the bucket, her family splits up in three groups and then one of those groups goes to Canada and one of them gets voted in as monarch by the senate?
I remember how the Aragonese treat their king in the Middle Ages: "We, who are as good as you, swear to you, who are no better than we, to recognize you as our king and sovereign lord, provided that you protect our rights and privileges, but if not, not."