Quebecois people have almost everything they want, so other than independence itself (which they have rejected)
Francophone Québécois voted for independence both times. It's similar to the Catalan situation.
True, though the rest of their province did not vote for independence, and they (the Francophones) have to deal with that.
Unlike Catalonia or Scotland, which became part of Spain/the UK by request of their own governments, Quebec became part of Canada due to military conquest and occupation. Most comparable to Northern Ireland or Israel/Palestine (though of course far less violent all around). One could argue that the "new arrivals" therefore have less moral authority on the matter than Francophones do.
In any event, just because one's position isn't held by 50%+1 of voters doesn't mean you aren't allowed to advocate for it.