MUFC said:
I'm curious what are the real numbers...
How many people are leaving in the next months after they are already new Canadians?
How many naturalized Canadians are going back home without registering anywhere the Canadian passport when they travel back home?
I think this is how we going to see the huge chunk of Canadians who are leaving this country on a permanent basis.
The government knows these numbers but for obvious reasons they don't want to publish them officially.
How would the government know if you enter your home country using your native passport and not your Canada Passport. They only know if you entered your home country using Canada Passport. The government does warn that if you use your native passport, don't expect much help from Canada Consular services in the country.
http://travel.gc.ca/travelling/documents/dual-citizenship
Travelling as a dual citizen
While having dual (or multiple) citizenship is legal in Canada, it may not be legal in the country of your other nationality.
Should you choose to travel to your other country of nationality, you should be aware of local laws and regulations that may be imposed on you by that country as a result of your citizenship in that country. Some examples include mandatory military service and penalties for unpaid mandatory taxation. Some countries do not recognize dual nationality, which may restrict Canada's access to you if you become incarcerated. It is your responsibility to research the local laws of your other country of nationality before you travel there.
For more information on travelling with dual nationality to a specific country, please consult the country's page in our country travel advice or contact the appropriate foreign office in Canada.
Canadian citizens requiring more information can also call 613-944-6788 or email travel @ international.gc.ca.
Common note found under travel Entry/Exit Requirements under Country Travel Advisories:
Dual citizenship
The “Insert Country here” government considers any person born in “Country” of “Country” parents to be a “Country” citizen.
This policy may limit the ability of Canadian officials to provide consular services. You should travel using your Canadian passport and present yourself as Canadian to foreign authorities at all times. See Travelling as a dual citizen for more information.
As far as I'm concerned, if you entered your native country using your native passport (non-Canadian Passport), you should lose Canadian privileges such as very limited access to Canadian consular services, no bailout help in event of war or disasters (should apply to everyone, including non-dual Canadians, since they made the personal choice themselves), no access to Canada Pension (should they retire), etc.