There is no church-state separation in Canada, which is one of the things that makes our Constitution superior to that of the United States. The US Constitution frames the relationship between church and state antagonistically, and its wording invites all sorts of obnoxious dithering over what does or does not constitute the establishment of a religion. I've even seen very extreme, fringe atheists argue that religious people shouldn't even be allowed to vote or hold office. Our Charter of Rights and Freedoms protects one's own religion, whatever it may be, regardless of what the religion of politicians or our Sovereign may be.

This is just one example of how poorly framed the discussion over the Monarchy is. People who don't even understand how our system works are suggesting that we enact major changes that involve COMPLETELY tearing apart how Canada legally and politically functions, and undermining everything that makes Canada a distinct culture.