@MisterWanko Yes, according to the immigration lawyer CBC spoke to, it's possible but difficult and would require new legislation and amendments to the current Citizenship Act, since under current law, citizenship can only be revoked if obtained by fraud or misrepresentation (Musk's mother is Canadian, born in Regina, Saskatchewan).
@NewsDesk What I'm saying here is, let people have hope that Canada declares him an enemy combatant, and revokes his citizenship as a consequence of his harm to Canada.