What partially triggered this, is the original alignment stayed closer to Overlea, and there was some community (and very few who actually lived in Thorncliffe) opposition because it would interfere with a driveway to a Christian chuch parking lot.. When Metrolinx moved the alignment (which likely had nothing to do with the church), they hyped that they were listening to the community, and avoiding the church.
But they ignored that they were now impacting several Muslim religious and cultural sites. Not surprisingly, they've since gone very quiet about saving the parking lot of the church!
So how did Toronto's civic mindset get here? It got here, when we moved to the point, that racist ignorance wasn't okay, and neither is Metrolinx's heavy-handed community "consultation".
Metrolinx never had the kind of discussion with the community on possible alignments, that TTC does with similar projects. It's all "this is the way it has to be", until suddenly "something else is the way it has to be".