You have an issue with the government of Canada, please send your complaints to them. The European Canadians assumed governance of the country because the natives where not a sovereign nation; they were divided tribes each with a different culture. It was the new world.

If first nations are left like they were today, do you think Canada would be the Canada you traveled to? No..you probably won't even go there.

Comparing Canada to Kuwait, Qatar, UAE is comparing apples to oranges. Those countries are ruled by Arabs and they have laws to protect the local population. Even if the colonial era comes back and UK colonizes the Arab world, the Arab world culture won't be erased.