Gallo

While browsing YouTube this morning I came across a video about Gallo, a Gallo-Romance language spoken in Brittany and Normandy in the northwest of France.

Gallo is one of the langues d’oïl, and is closely related to such languages as Norman and Picard. It is recognised as a minority language in France, and is taught at state schools in Upper Brittany, although few students choose to study it.

One of the comments on the video goes as follows:

De ce que j’en entends dans ce reportage, c’est plutôt une déformation paysanne du français et non une langue avec sa grammaire et son vocabulaire comme le breton.

Which means:

From what I hear in this report, it is rather a peasant distortion of French and not a language with its grammar and vocabulary like Breton.

This kind of thing seems to be quite common when minority and regional languages and dialects are discussed. Speakers of majority languages often belittle them, claim they are not proper languages, that they don’t have their own grammar, and/or that they are ‘just’ dialects, patois, or distorted / corrupted versions of a majority language, and so on.

I wonder why people feel the need to make such comments. Any ideas?