I see you reverted change in Q7930989 and now every city and town is again instance of 'census subdivision of Canada'. That's pure non-sense. Cities and town around the world do not belong to Canada. If it was census subdivision than maybe but this claim is really wrong.
Topic on User talk:Gymnicus
Can you explain why you insist on marking every city and town around the world Q7930989 as subclass of city 'census subdivision of Canada' Q17457753?