I mean they gonna argue

1. In so far as the aim of the Charter is not to recognise or protect minorities but to promote the European language heritage, and as the use of the term "groups" of speakers does not grant collective rights to speakers of regional or minority languages, the French Government interprets this instrument in a manner compatible with the Preamble to the Constitution, which ensures the equality of all citizens before the law and recognises only the French people, composed of all citizens, without distinction as to origin, race or religion.

Above gives us an idea of how ..... which happened to not be true for the FCNM.
Now this reading is dubious since the initial intention was to oppose the negativity of any status (origin, race or religion) before the law something the French revolution wanted to abolish however the FCNM or the ECRML does not introduce before the law any such negative status for anybody? U say?