The real figure seems more like 500k, or about one percent per year. https://en.wikipedia.org/wiki/Canada_immigration_statistics

Which categories of Canadian visa do you want closed?

The political environment has associated that stance with right-wing Conservatism, and while that party does hold that belief, it's looked down upon by the Canadian centrists/left-wing parties. I'm not sure how to describe their solution to this issue, because I'm not sure there is a stated plan.