
You might disagree with the argument, but it’s not completely random. From the US, we gained most of the benefits of having nukes and spooks, without having to maintain them ourselves. Since we can’t trust them, we now have to decide if it’s worth developing our own.
On the other hand, it allows people to vote strategically. I saw that the Liberal in my riding had no chance, so I voted NDP. If I hadn’t known that the NDP candidate was the best chance to keep the Cons out, I might have said to myself, “Well, the Liberals are more likely to win, so I should vote for them so we don’t split the vote.”