Wow, Eric, that is the most thorough explanation that anyone could have wished for and I hadn't realise that there were so many implications to la glottophobie!
But I did see Mélenchon, around the time of the general election, taking questions from journalists and pretending to not understand a question from a woman with a SW accent and then, to compound his error, asking for a question from someone who spoke French!
He was roundly condemned in the press for it but I guess he is just as arrogant as any other politician?
I myself have to be very careful how I pronounce words with "en"
(as in mentir
!) because around these parts, many people say it differently to the regular accent parisien
Apprendre une langue, c'est faire un voyage différent chaque jour.
from Fle pour les curieux