I'm discussing the public appetite for it. TTC does have high recovery fees, but you see the political reaction whenever there is discussion of increasing the fare, even to just generally match inflation.
You see it in the calls to remove the tolls from the 412 and 418, from the constant complaints about toll rates on the 407, about people complaining about how expensive GO is all the time, about the huge negative reaction when Tory proposed to toll the DVP and Gardiner despite it making a lot of sense for a whole variety of reasons, etc.
Especially road tolls are much more generally accepted around the world than here. Most of the world is building their freeway networks on the basis of toll systems to finance large networks quickly, but Ontario continues along growing it's infrastructure network much slower than it needs to because the expectation is that it will be free or very cheap to use and needs to be covered by a very limited general tax revenues pool.
The vast majority of major US roads projects these days are at least partially financed by tolls. That is absolutely not the case in Canada. Tolls have a long history of very poor reception here.