A truly fiscal conservative approach would indeed reduce or eliminate such benefits and other tax credits.  But it would also be accompanied by lower program spending (especially government overhead), and lower income, business and investment taxes.  Foreign concept to the Liberals, and even the CPC are unlikely to touch sacred cow tax credits.  Bernier, O'Leary and Chong proposed fiscal conservative platforms (albeit at different points in the political spectrum) but none were considered politically palatable in the end.