I think being "anti-dishonest renaming", perhaps could be seen as pro-colonialism. Maybe they are upset places like Villiers Island and Lower Coxwell got renamed with indigenous names.
One of the speakers, Daniel Tate, seems to be really upset about renaming of Dundas Square and that the statue of John A. MacDonald was covered up in a wooden enclosure.
So some of the views of at least one person speaking at this event organized by the so-called Toronto Concerned Citizens Coalition can potentially be construed as anti-Indigenous and perhaps pro-colonialism.
I am by no means an expert historian on Canadian History and treatment of the Indigenous population, it's certainly a complex than nuanced history
But in summary, this group is "concerned" about more than just bike lanes.