A POSSIBLE SOLUTION TO THE AFFORDABILITY HOUSING CRISIS IN ONTARIO

I am wondering if a better approach to "affordable housing" would be to just have a moratorium on all development. Even stopping construction of those monstrous high rises, blotting out the sun and destroying neighbourhoods in downtown Toronto. 

Have each developer submit a plan about how for every development, 25% of the project will be affordable housing or the developer will begin to construct affordable housing equivalent to 25% of the high rise, housing units, town housing, etc that they plan to or are building. Developers are making billions of dollars and yet are not building any affordable housing, at least not in downtown Toronto. How is a family supposed to live in a 500 square foot (ca. 46 m²) condo which costs BETWEEN 600,000 AND 1 MILLION DOLLARS? Only until the developer's plan is agreed to and started will the ban for that developer be lifted. 

NOT FINES, COMPLETE MORATORIUM ON THAT GREEDY DEVELOPERS PROJECTS.

I know I am being too naive. Politicians depend on developer support for lots and lots and lots of reasons. Those who need affordable housing just do not have the political punch.