Of course it's far from likely!
But Madmax was asking what the Canadian government [b]could[/b] do about the situation, suggesting that there really was nothing. He is very wrong.
We could also abide by the boycott of Israeli products and cultural and academic exchanges and imports. We could also put an embargo on sending war materiel to Israel or any other country that might pass it on to them (e.g. the USA). We could also stop voting against UN resolutions condemning the violence. There is plenty we could do.
The fact that there is no chance in hell that Harper will do any of that stuff is not an argument against it.