On sovereign BC Day we should feel that in the same way for exactly the same reason. Administrative issues aside , Canada is still better than most everywhere else. Take your next vacation in Columbia if you don't think so. We want the social stuff without the friction that comes with decades of Quebec rule. On Canada Day WE can stand in the warm glow of the feeling that you get on a national day.
Separatists are likely to meet with all kinds of argument.
But really there's nothing for us to be offended about by that. We can afford to be the kind of decent people that we've always been. Canada Day is about us as much as about anyone else. This question reminds me of another. Canada is about where we've been.