Yeah, they're going to be paying a lot for gas already. No wonder they're angry at the carbon tax, and would be furious at any tolls. They can't afford it. But they also don't have a choice, except move out of the GTA, which is what many are doing, and that's going to cause much bigger problems in the long run.
And transit is all well and good for someone that works downtown, but if someone is living in a suburban community in Pickering, and commuting to an office / industrial park in Brampton, for example, there's no transit you could build that would make that trip time effective.
That's why it's a housing issue. Housing mobility needs to be higher, affordability needs to be dramatically increased, the types of homes that families are willing to live in need to be built near transit nodes. That's the only world where we can start making significant inroads into transit being a bigger part of the solution.