The problem is all of the plans were made without any input except for the development company that is waterfront Toronto. Your arguments make no sense at all. Why on earth would there be a streetcar line on lake shore Blvd. I'm sure that the TTC rejected that idea with very good reasons and not anything to do with buses.
As I said we need housing in Toronto not condos with a small convenience store, chain fast-food restaurants and a grocery store or shopper's drug mart. The whole waterfront development is centered around people who will live in that area and no one else. They don't care about anyone in Toronto who isn't going to buy one of them or rent one.
The "parks" are mostly concrete with a water feature and some grass and trees. That is not a park that is useful for anyone other than someone who wants to sit and people watch.
The day of single and townhouse are at an end in most parts of Toronto that you need to go tall to meet future needs. Not every building has to be an condo, but also rental. Not every tower has to taller than 10s.
If one has walked around the city core these days as well know what the area look like over 10 years ago, you will see a large areas that were single homes, single/double retail have or becoming 10-60s towers.
Rental development die up a long time ago that it has now return in great numbers than before. Various developers are seeing a bigger return on investment for rental as they can get shovels faster into the ground than condos to start seeing the return on the investment than wait years to get to the 80% sold
Again, you cannot put retail into every development as it saturate the market that these retail sit empty up to a decade or more. One has to go to Queen and Gladstone to see empty retail that was built over 5 years ago, or Weston Rd and Dundas that was built over 10 years ago and the list goes on. Even where retail exist before COVID sat empty where it used to be busy. Markets change as well what residents want in the area are willing to support.
The BIA for the waterfront has complain about lack of business in the area for over a decade because the local residents were not supporting them. Why is that??
What was vision by Waterfront Toronto was taken out of their hands by developers who properties were part of Waterfront Toronto Plan. Waterfront Toronto lives from projects to projects as they have used up the seed money from all 3 levels of government.
You can have so much green space as some end up being empty most of the time. There is cost to maintain the grass areas compare to concrete. Lack of play areas for kids is a problem, let along basketball courts.
As for the Lake Shore Line, the idea was to offer faster service to the east where the line connect to Kingston Rd and allowing another option for residents east of Kingston Rd to get downtown faster than the current way..
The north side is to see mix development while the south will see employment with some residential. What the area lack is grocery stores that force people to travel long distance to get food.