There's good reason to be afraid – be very afraid – of a Harper majority. I'll defer to more eloquent and more experienced observers on that, because I'm not sure I can add anything to what they've already said.
But it does suggest a need for more focus on electoral reform. Indeed, electoral reform needs to be a priority for anyone who believes in genuine democratic governance, regardless of where you land on the political spectrum.
I've written previously about the dysfunctions inherent in our current First-Past-The-Post system, whereby all you need for a seat in Parliament is to capture a plurality of the ballots in any given riding. It's quite plausible, common even, for MPs to go to Ottawa even if a majority of their constituents don't support them. Viewed through a nation-wide lens – well, you see the problem. Once a party captures a majority of seats, it gets to run the show as it sees fit, regardless of whether or not it actually enjoys the support of a majority of the electorate.
Any government that obtains a parliamentary majority under the current antiquated, dysfunctional FPTP system can exercise the same kind of dictatorial power that we've seen under Harper – it's just that Harper's been particularly obnoxious about it. (The fact that he's gotten away with it in a minority situation says as much about the fecklessness of the opposition, to date, as it does about him.)
Therefore, another modest proposal: our strategic focus needs to be on electoral reform – some form of proportional representation, weighted voting, local runoffs, transferable votes, whatever – so that the tradeoffs, compromises and negotiations inherent in the formation of coalitions can become the rule rather than the exception. Once that's done, no government will be able to enact legislation or conclude bilateral or multilateral international agreements without a genuine measure of popular support.
Yes, it will require more from us as citizens, but in terms of transparency, responsiveness and accountability, I'd submit that it's worth it.