Bike lanes allow cyclists to…

Bike lanes allow cyclists to move more safely throughout the city. They stop easily preventable deaths and also provide a buffer between pedestrians on the sidewalks and the fast cars on the road.

Streets where bike lanes removal a lane of vehicle traffic are usually chosen where that vehicle lane is parking anyways. Nobody drove in the rightmost lane of Bloor before the bike lanes were installed because you couldn't go ten meters before reaching a parked vehicle. Having the lane be dedicated as parking doesn't even change the amount of traffic that could move through it because it was already essentially dedicated parking anyways.

Removing lanes that are already built is a huge waste of taxpayer money. Bloor and University were just finished within the last year, and squandering more money to undo that work is reckless and wasteful.