There is already a thriving private school community in Toronto.  And if the TDSB continues its drive to mandate mediocrity and remove opportunities for kids to excel then the private system will flourish.

I started my kids in the public system.  Then moved them, at great expense, to one of the establishment single sex private schools in the city core.  These schools were of course, highly diverse, as long as you were WASP, Jewish, or Asian.  And their elitism and wealth caused its own issues - my kids were raised in an economic bubble.  But the overall quality of education, the commitment of the staff, the small class sizes, the wide range of exceptional programs, and the first class facilities were worth every penny.  You can't give your kids a better gift than a great education.  And if the TDSB, despite massive taxpayer funding, is going to elect not to provide one, then the demand for private school education will soar.  And in the end, is that good for Toronto?