I hold dual citizenship. I have been Canadian since 1977 - longer than many who were born here. This is irrelevant, from my point of view.
Those who specifically misrepresent themselves during the citizenship process, or those who recant their oath/solemn affirmation following their citizenship ceremony, should be evaluated and stripped of the Canadian citizenship that they did not rightfully earn.
Not all dual citizens who commit acts of treason obtain their Canadian citizenship for that purpose, though - and, really, why would anybody bother if their intent is to commit an attack? It offers no tactical advantage. A foreign-born child could obtain citizenship and be radicalized many years later - there would be no intent to deceive at the time.
Those who specifically misrepresent themselves during the citizenship process, or those who recant their oath/solemn affirmation following their citizenship ceremony, should be evaluated and stripped of the Canadian citizenship that they did not rightfully earn.
Not all dual citizens who commit acts of treason obtain their Canadian citizenship for that purpose, though - and, really, why would anybody bother if their intent is to commit an attack? It offers no tactical advantage. A foreign-born child could obtain citizenship and be radicalized many years later - there would be no intent to deceive at the time.