This decision is not one to…

This decision is not one to be taken lightly. If you make the wrong decision then not only will cyclists die, but the vehicle driver will also be affected. The velocity that cars travel at on city streets make it likely that a cyclist will die if they are hit.
This is a personal issue to me because I am a parent to a young man that has a passion for cycling. He constantly sees vehicles that are disobeying street rules, and drivers that are distracted. I am afraid that he will get hit by a vehicle again. He was lucky the first time, and had no permanent damage. The next time that he gets hit, he might not be so lucky.
The bike lanes in Toronto help keep him and his friends more protected. It is less likely that they will be 'doored' by a vehicle because the bike lane is usually placed on the passenger side of the vehicle.
The bicycle lanes provide a clear designation that traffic with vehicles and bicycles are separated. Bicyclists do not have to assert themselves to take up the space on the road, and the rights of way that they are allowed. If you remove the bike lane, the bicyclist will take up space on the road and has the right to take up the whole lane. If you don't think that they will do this in response to the removal of the bike lanes, just watch them.
This is a decision that needs to be made on a block-by-block basis. Sometimes it makes sense, and sometimes it doesn't. A city can do that.
The City of Toronto has shown that bike lanes benefit the economics of the retail shop owners. And if there were no bike lanes then where are you going to put all of the UberEats delivery people along the Danforth? Back into the street? If you want to make a difference, get rid of car parking along streets such as the Danforth. There are only a few spots along the street, and they block traffic. There is lots of parking in the lots nearby.