You are wrong there, at least for the south-west of the USA (which is bigger than France). You must have missed the brouhaha about the billboard that said "Los Angeles, Mexico".
So, is anybody doing anything to stop this?
No?
If I understand you and the posters who followed you, America is being transformed into Mexico, and yet the government of the United States does nothing to stop this?
Is this, perhaps, because the government does not think this is true?
Or because they do not think it matters?
Or because it is not in the interests of the people they represent to stop it?