I’m of the opinion generally that settler colonialism should be avoided, since every previous settler colonial project has been a complete disaster, and especially for the natives (see: the Americas, Palestine, South Africa, Algeria, Australia and New Zealand). The population of Europeans in New Caledonia was last recorded declining both in percentage and absolute values, while natives have been growing. France could discourage or ban new settlers, grant current settlers full rights, and it’s possible in a few decades the European population may naturally decline to where it’s not significant. Then again who am I to set such a long timetable.