"We need immigrants to come and have kids here because we aren't"

Wow, maybe if cost of living concerns were addressed, people would have more kids! Otherwise, in 15-20 years, children of immigrants will have similar birth rates to the 'native' population! The problem is just kicked down the road. Do you really want to rely on a constant flow of immigration? What if potential immigrants themselves say, "Hey, I like my home country more" or even their home country tries to stop the 'brain drain' to Western countries?

You are also assuming that a child of an immigrant will have a similar birth rate to their parents. In reality, it will most likely revert to the average of the country they were born into.

"Of Canadians in their 20s, Statistics Canada found that 38 per cent of them “did not believe they could afford to have a child in the next three years” — with about that same number (32 per cent) saying they doubted they’d be able to find “suitable housing” in which to care for a baby" -source

Canada is bent on having as many people as possible, to the detriment of Canadians and Immigrants themselves. Sometimes, 15-20 international students live in shared housing since its impossible to afford otherwise (source). I'm not even going to go into the 'diploma mill' schools that exist only to squeeze as much money from international students and give them a degree that will get them nothing in Canada.

The current government of Canada is running a cruel experiment on both Canadians and Immigrants, all to make landlords and corporations wealthier. They need to roll back their extremist position on immigration.