If Canada had become a republic sometime in the 20th century (despite strong objections by traditionalists) or had a larger francophone population spread out over a larger area than OTL (say, 40%), what difference would that have made in terms of the Quebec sovereignty issue (e.g. referendums), French-language politics, and related issues? Would one of the two above factors (being a republic or having more French) have made more of the difference? What if both of these factors had been in play?