There were immigration consultants telling people overseas they're guaranteed citizenship if they pay them to apply to a Canadian institution as an international student.
Women were forced into sexual slavery because going back home wasn't a valid option for them. Their family had spent every penny they had to chase a better future in the West for their kid. I'm sure it's still happening but more hush hush after it became obvious that the majority of Canada isn't onboard with such high immigration.
Any and every single conversation on immigration used to be immediately accused of ulterior motives few years ago. We built a permanent underclass of mostly non-white people and you'd get accused of racism if you point out the obvious exploitative nature of our government's policies.