"It's hard to see what Canada has to gain from admitting significant numbers of people from the culture that spawned the Shafias." And "they come and settle into a culture that asks nothing of them."
The second would seem to be an influence on the first. That is, no one asks before they are let in if they are bringing anything worth having.
But Canada at leasts asks that they meet some minimum requirements to be let in. Here in the U.S., we don't even ask immigrants to nod to a border guard on the way in. Just show up.
In both cases, we see standards in free fall. The only tiny sign of hope here is that the Canadians are actually having a murder trial.
Native Quebecois are reproducing themselves with the same rate as Europeans, - way below replacement rate - so in order to keep up the census for the province, immigration has become a huge issue. Central Americans do not seem to find the climate congenial, so Quebec is welcoming anyone who will settle there - practically no questions asked.
Not a very good plan for the long term health, safety and prosperity of the country.