Rolling back the French Language?  Don't you mean the CPC dreams of  rolling back the oppression of the English language rights  in Quebec  (that is part of Canada) that  was denounced by both the Supreme Court of Canada and the United Nations  as contrary to Human Rights but Quebec used the not-withstanding clause to ignore. As Pierre Trudeau said to an interviewer  "I'm French, I'm as good as you, I don't need any protection"