Torontonian here. It might be worth asking, but I can tell you right now they'd laugh at you. Their boomer voting base doesn't want to bother and they have big federal problems to worry about. Heck look at Scotland right now, some people suggested keeping cats out of conservation areas to protect bird species and everyone is freaking out. Despite being great for the environment, outdoor cat bans are not popular with voters.
You may have more luck with your local councilor. Pet issues tend to be handled at the municipal level. Even your MPP would be a much better choice, assuming they aren't conservative. However if you really want the situation fixed anytime soon, you'll need to either get help from a charity like the Humane Society or take care of it all yourself.
This is just catnip bubbles with extra steps