As a Canadian, I take a bit of pride whenever Canada is mentioned in a positive light, but there are many cities that have TO beat. I figured if I searched I would come up with several Chinese cities, however, while doing a search for futuristic cities, I came across the following, "With 49% of its population having been born outside of Canada, UNESCO has named it the most diverse city in the world. And if diversity is an element of the future, then Toronto has arrived." Guess you're right, lol.
https://thefairytaletraveler.com/2017/04/19/futuristic-cities/
https://thefairytaletraveler.com/2017/04/19/futuristic-cities/