>These activists always have a dark intention in their ideas that they want some poor indigenous people to be burdened with the work of learning and using a dying language.

Learning multiple languages has been shown to provide many benefits to a child's wellbeing, though I don't see anyone forcing anybody to learn or use the language.

>If young Ojibwe people are choosing not to use it, then maybe it's because they don't want or need it.

Kids stopped using it because they are shipped to residential schools that used to punished use of their nativity language. There was no "choice" offered.