1) I am talking about that stretch of the Gardiner, from Jarvis St. to the DVP. That elevated stretch of the Gardiner does not move hundreds of thousands of commuters. I live right by the lake, right near the Gardiner. I see, I experience, I read, I follow - Toronto. You do not live here at all, you live in exurbia and only travel to Toronto via personal vehicle. U come in, do your shit and get out. That's the extent of your intimate knowledge of Toronto.
I don't share personal information on TERB, but if you were right, that would mean I have lot more driving experience on the Gardiner than you do, and a much better guage on the traffic levels. I can tell you from experience that the downtown sections of the Gardiner move poorly (if at all) throughout the entire working day (7:00 am to 7 pm) with the possible exception of noon until 2:00 pm. If I were to generalize from your circumstances, I would conclude you probably don't even own a car, as a large number of downtown denizens don't.
And the thing about roads is that they form part of a network. They take you from here to there. You can't really analyze the utility of a small segment of a road system in isolation. You'd have to analyze the impact of closing a stretch of road on the network as a whole. Traffic across the core is already unacceptably bad. Closing ANY stretch of the Gardiner would only make it worse, both on the Gardiner and on the alternate routes.
2) If you really believe successful retail stores/centers/malls offer free parking then that is even more proof that you just are so unaware. The costs of that parking is passed on to customers in the price customers pay for goods and services.
Yes, businesses must cover their overhead by the revenue they bring in, and so, in that way, they do indirectly "charge for parking". However, they are able to spread that overhead over so many customers that the parking charges "transferred" to clients in the form of pricing is tiny, certainly compared to street rate parking in Toronto? Why? Because the city has no other way to defray its overhead costs (no profit on the sale of goods). Therefore, the City is an inefficient manager and vendor of parking space compared to any vendor. The analysis you offer about the economics of businesses is superficial.
3) Businesses will leave! Retail will close! The city will be gutted! People will lose jobs! The price of everything will go up! Fear mongering, all of it and none of it true. Raising the minimum wage did not produce the calamity that the business community and conservative fucks warned. The vehicle tax did not lead to disaster. The Toronto Land Transfer Tax did not cause property sales to plummet as the RE industry keeps warning about. Tax hikes did not lead to businesses taking a hike. I'll tell you what causes calamity, it is the unaffordability caused by unchecked free enterprise/greed.
Business HAVE left. Retail is at a low ebb in the city.
Drive around. Have a look at the amount of available retail space. Prices have gone up, substantially. You seem to be unaware of your surroundings. Just how much time are you spending cooped up in your downtown chicken coop in the sky?
4) Get back to me, when you have a handle on Toronto because to tell you the truth it is a waste of time debating with someone who is a foreigner to Toronto.
The people who interact with Toronto to do business have a much better bead on what they would do if conditions were changed than people who don't. Customers always have a more accurate take on their customer experience that some small holding stockholder of the company ever does.
However, the big point you seem to be missing is that the quality of life of Torontonians like yourself depends on doing a substantial amount of business with people and businesses in neighbouring communities, so unless you want the city to decay, and your lifestyle with it, you should support whatever it will take to keep customers and businesses choosing to come into the city. Your residential tax rates are so low because commericial tax rates subsidize them.