Okay so it's becoming clear that this isn't parody, some people actually seem to think this way. Some people actually think that transit planning is some sort of class struggle and that these mysterious "elites" are scheming against the downtrodden in their smoking rooms or ivory towers or whatever the stereotype is. We'll just put aside the fact that downtown, the supposed home of these elites, hasn't had any subway expansion in over 50 years despite being where most of the overcrowding is.
So this is a response to both of you. First of all, you don't solve poverty by building insanely expensive subway lines parallel to perfectly good rail lines going through low density industrial areas to distant suburbs. It's much cheaper and easier to merge the fare systems of the regional and local transit systems so that they're a single seamless system and upgrade the rail line that already exists. This is more efficient, saves billions of dollars, and leaves a lot more money that could be spent helping the poor in more effective ways. Like lower fares for people under a certain income level for example. Your ideas would make things worse for the poor, not better.
In any case, your entire premise is faulty. Markham has a median household income of $86,000 while in Toronto it's $66,000. Your proposal would give us two parallel rapid transit lines going to the same place, both serving the rich. So kudos, I guess?