Big polarizing issue in my home town of Oakville. Some little old ladies are even afraid to come out of their house. Local social media fuels the paranoia, especially among new Canadians that have had little exposure to wildlife. It's the "big bad Wolf" syndrome.
As far as I know, the only time there have been threatening interactions between Coyotes and humans is when people feed them, and they get conditioned to humans as a food source. Most of the "stories" of pets being eaten by them have turned out to be urban myths.
Personally, I don't see them as a threat at all. There is a pair that walk past my house every morning like clockwork...they don't bother me, I don't bother them. On a few occasions, where I've come head to head with them in the local park...either a bark from my Vizsla (not a big dog) or a clap of my hands has sent them scurrying away with their tail between their legs.
They're here, because food is here...frankly, I like the fact they keep the local rodent population under control. The rat problem is one of the dirty little secrets of the suburbs.