Hm, let's see...
3. I do'nt see how it is suppressed.
Sorry, maybe not the best word I chose. I didn't mean suppression by force, I meant being eclipsed by the presence and use of the others. What you mention that many people learn Hochdeutsch rather than Alsatian is part of this (and parallels what happened and happens to some German dialects in Germany proper, BTW). *Traitor*, n. A benighted individual who perceives an illusory distinction between serving his nation and abetting the criminals who govern it.
I'd need to dig up sources again, but that's been the experience of my growing up there, and occasional visits. I cna ask my parents who live there... In the long run, we're all dead. John Maynard Keynes