It's rather bizarre to hand off key policies such as immigration to a foreign consulting company, one which is controversial enough.
Trudeau government had spent $66 million on sole-sourced McKinsey contracts since coming to power in 2015... under the Liberals McKinsey contracts have “exploded” by a factor of 30, according to Radio-Canada. This is particularly true at Immigration, Refugees and Citizenship Canada, where insiders have fingered McKinsey with designing the Trudeau government’s policy of dramatically ramping up immigration to unprecedented levels.
https://nationalpost.com/opinion/first-reading-canada-the-la...
I find the claim that it had exploded 30x to be almost impossible. Because you will struggle to do a single McKinsey project for 1/30th of 8M.
> In the nine years of the Harper government, McKinsey was awarded $2.2 million in federal contracts. During Trudeau's seven years in office, the company has received $66 million from the federal government.
https://ici.radio-canada.ca/rci/en/news/1946212/the-value-of...