Your snuff porn doesn't do anything to stop me from feeding them. Especially since it's not legal in Ontario.
Humane kill traps are perfectly legal in Ontario, especially on private property. It's a sales video by a legit pest control company. - if YouTube and their strict anti-cruelty regs is fine with it, so am I. Where do you draw the line, if ants are in your kitchen are you putting down ant poison to kill the queen and colony, or are you perhaps feeding them as well?
There are four main ways to control pests: first, control their unnatural food source (i.e. you); second, relocate them; third, control access to stop destructive activity; fourth, eradicate the pest. My preference is to control access or relocate them, for example we had a raccoon in our chimney and a skunk under our porch, both were humanely removed, the skunk was released in front of our house, after we boarded up its access point, and so far it's not returned. The racoon was taken away by the trapper and released in the Don Valley forest. Two wins there.
The problem with people feeding squirrels is that they then congregate and reproduce near the food source, meaning they tear into people's roofs in order to nest. I still prefer humane control of access to the roof through metal barriers, but that doesn't work well if the food source is not also controlled. Thus I can understand why the lethal option is finally resorted to by those homeowners who might be fed up by their neighbour's feeding wildlife that is perfectly capable of living off the land as intended.