There is one human race of people, but everyone born in Canada is an indigenous, native Canadian citizen. The official language of Canada is English and, to a lesser degree, French. It is already gratuitous, and redundant, to put "École" in front of an English school name. It would be wholly improper to affix signage in a non-official language that is only spoken by a small minority, whether it's Carrier or something else.
Reconciliation be damned, we are all already Canadians.
Sure there are different ideas about how the land should be governed. The fact is that Canada remains the sole sovereign nation over all its territory.
I am a proud Canadian. Now is time for all Canadians to stop apologizing and to put the nation of Canada first, not by alienating the majority of other Canadians, but by working towards those goals which are in the interests of all Canadians.