According to the 2021 Canadian census, Vancouver is now a majority-minority city, 54% non-white. [0]
Also, keep in mind that in both Canada and the US, a plurality of the underclass are of European descent: in 2020, the U.S. Census Bureau estimated that 37.2 million Americans were living below the poverty line, of whom 42.7% were non-Hispanic White, 28.0% Hispanic, 22.8% African American, 1.6% Native American, 4.8% Other. [1] (I don't have equivalent figures for Canada at hand, but I expect they will tell a broadly similar story, with European-descended people being the plurality of the Canadian poor.)
I said underclass was physically segregated. The US systematically discriminated against black people to form an underclass that shared a racial identity. Neither ethnic nor cultural Chinese in Vancouver are an underclass and have nothing to gain by executing a "race riot". The First Nations people you have so poorly treated are too small a fraction of the population and too dispersed for you to see a "race riot" on par with Los Angeles or Detroit, but the protests are there.
Are you arguing that Canada "physically segregates" its underclass to a greater extent than the US does? I don't think that's actually true.