They have political, legal and constitutional status that makes them different from visible minorities to the extent that, if one were to say that visible minorities as a term includes Aboriginal people, it would lose all meaning because you would always have to footnote that when are you talking about the legal status of the visible minority there is a different legal status for First Nations, for example.
Ils ont un statut politique, juridique et constitutionnel qui les distingue des minorités visibles dans la mesure où, si l'on disait que les minorités visibles englobent les Autochtones, ce terme perdrait toute signification parce qu'on serait toujours obligé de préciser, en parlant du statut juridique de la minorité visible, que les Premières nations ont un statut juridique différent, par exemple.