The service workers in the cities shouldn't be low-paid.
Things should cost more in the cities to account for the cost-of-living.
I know exactly why every low-pay service worker in the GTA is brown, it's because those businesses refused to pay their workers at a rate that could ensure they could live in their communities so they left. Immigrants from dangerous regions however, are more than happy to work any job for the sake of their immigration status and live in whatever conditions ensure that they don't have to return to their home country.
They don't want to live like that, they're forced to live like that. Fuck, I've done the ski resort gap year thing, I know what it's like to live with 9 strangers in a 2-bedroom condo. It fucking sucks but it was worth it because of where I was living.
Subsidized housing ensures there's a supply of low-wage workers but it shouldn't be like that. Taxpayer dollars should not be going towards ensuring that a city where housing is prohibitively expensive should have a ready supply of cheap labour.
Uber in Toronto should be fucking expensive. Food in Toronto should be fucking expensive. Retail in Toronto should be fucking expensive. Half of the reason that the price of housing is out-of-control is due to the affordable housing (new immigrants and refugees get priority,) allowing the city to have low-paid workers.
Affordable housing just widens class-gaps. There is no reason why taxpayers should subsidize businesses that don't pay a living wage for their area, and without taxpayer-intervention they would be forced to do just that to stay afloat.