On the other hand, he was elected democratically, and it's healthy for the country and the Liberal party to have the Liberals out of power every once in a while.
On the one hand, the record of the last two Liberal governments, especially Chretien's, is pretty spotty in a lot of areas, and it seems sort of hypocritical to criticize Harper when Chretien was no better. Chretien specialized in promises and lip service on things like foreign aid and the environment.
On the other hand, while Chretien had his failings, he successfully tackled some key issues that Harper is not doing so well on: the economy, the deficit, resisting US pressure to help it illegally invade another country, keeping Canada together. Having a healthy economy and low deficit makes social programs possible. Plus, Paul Martin was taking bold moves on some of the things Chretien let slide, like the environment and foreign aid. Plus, while Chretien may have been a bit negligent in not moving on certain issues, Harper will/is completely reverse the direction of policy.
On the one hand, it's sort of fun to get up a self-righteous head of steam in opposing the Harper government.
On the other hand, it doesn't lead to clear or objective thinking. It may be my age, but it doesn't feel right.