Hussen, now in his early 40s, fled to Canada from war-torn Somalia when he was 16.
Somalia is in Africa.
"My experience is not unique," Hussen told The New York Times in 2017. "Canada receives a lot of refugees every year."
For Canada to add 1 million immigrants over the next three years, the nation would need to welcome approximately 350,000 -- roughly 1 percent of its current population -- in each of 2019, 2020 and 2021.
"Canada is a world leader in managed migration with an immigration program based on non-discriminatory principles, where foreign nationals are assessed without regard to race, nationality, ethnic origin, colour, religion or gender," Hussen wrote in his report.
About 1 in 5 current Canadians are immigrants, according to the report, with more than 6 million arriving since 1990.
About 13.7 percent of the U.S. population, roughly 1 in 7, in 2017 was foreign born, according to U.S. Census estimates. In 2016, that figure was 13.5 percent.