What does Justin Trudeau have to do with this?  The article is written 10 years after the 5 year old wished she wasn't white.  If you're going to blame a PM then it would be Stephen Harper's fault.  And btw, he is the one who gave an official apology to the former students of Indian residential schools.  Rightly so I might add.  
Now, OISE is a different matter and I can agree with that.