This article is filled with so many inaccuracies and generalizations it’s hard to pick a place to begin. First and foremost, the Hawaiian language is not extinct. It never was outlawed, however, its use as a medium of education was. The word “Hawai’i” does not mean “homeland.”
The author informs us that he has “studied languages for years and traveled extensively on five continents” and has written two unpublished two books. Hopefully they are better researched than this article.