Seems those Germans and Italians interned were hardly innocent citizens like the Japanese.  Your drawing a false equivalency between fascists and law abiding Canadian citizens.

Most of the German internees were members of German-sponsored organizations or leaders of the Nazi Party in Canada. Hundreds of Germans on Canadian soil were accused of spying and subversion. The camps also served to house captured enemy soldiers, such as over 700 German sailors captured in East Asia and sent to Canada. 

After Italy entered the war, a number of prominent Italians and Canadian fascists, notably Adrien Arcand of Montréal, were interned. Approximately 600 Italian men suspected of sympathizing with fascism were placed into three camps: Kananaskis, Alberta; Petawawa, Ontario; and Fredericton, New Brunswick. This last camp also held 517 Jews sent from England by Winston Churchill, who suspected them of being disloyal.