Real Conservatives like myself are proud of our heritage and actions regarding immigration, refugees and civil liberties as well as multiculturalism.

It was the Diefenbaker government that ended Canada's racist immigration policy and opened up the refugee system adhering to Dief's cherished 1960 Canadian Bill of Rights.
http://www.cic.gc.ca/english/resources/publications/legacy/chap-6.asp 

And the Father of Canadian Multiculturalism?  Diefenbaker appointed Conservative Senator Professor Paul Yuzyk who badgered and browbeat Pearson and then Trudeau to recognize that Canada was not just English and French.  His achievments are recognized in the Paul Yuzyk Award for Multiculturalism that commemorates the late Senator Yuzyk’s pioneering legacy in establishing multiculturalism as one of the fundamental characteristics of Canadian heritage and identity.
http://www.yuzyk.com/yuz-tribute1.shtml