If they idea is not practical what's the point?
My favorite change that would win the left is the guaranteed minimum income. Very low (your still poor if you just sit on your ass!), goes up slowly (you always get rewarded for working more), and even if engineer me has to pay a LITTLE more, it's not like the povs are not just getting welfare or stealing or who knows?
The beauty that will win the right is that if you have a a guaranteed minimum income, it's just adjustments to the income tax act. Very little additional government to do it. But you can completely eliminate welfare, CPP, EI, OAS (you can have a higher min for old people if needed to even it out) and as a result fire tens of thousands of civil servants!