[C.]

Good points and may be the answer to the question right here on why Canadian skylines rival their American counterparts.

But Toronto’s most important source of strength is Canada’s unusual — and shrewd — immigration policy. The thinly populated nation is one of the few in the world that sets a target for immigration rather than a cap. For 2020, it’s 341,000 immigrants.

That doesn’t mean Canada admits everybody who wants in. The country has an immigration points system that gives priority to applicants having work skills, education or other qualifications deemed desirable.

Equally important, Canadian provinces are allowed to fast-track immigration applicants willing to set up residence within their borders. Ontario accepts the largest number of immigrants. Most head for Toronto: Thirty-five percent of immigrants to Canada settle in the city.

Canada — and Toronto — have been particularly welcoming to refugees, including Hungarians fleeing the failed revolution of 1956, Southeast Asians in the 1970s and recently Syrians.

Immigrants have given the Toronto region one of the most diverse ethnic mixes in the world. Nearly half of Toronto’s residents are foreign-born.

The Canadian approach is one Chicago and other Rust Belt cities should study.