They've done studies with motorcycles and a big problem we need to overcome is: For some reason our brains ignore people on bikes sometimes. It sounds silly but it's a real thing I promise. I support anything anti car related, but any Bike lane shouldn't come within 50 ft of a road cars use. The mainstream trend of all cars bad lends too much ammunition to the pro car crowd. It's not pretty or satisfying but it's true. It's a nash equilibrium and there's only so much we can do.
Edit: Just putting this here for google. Working towards a car free world is going to be a ton of work. Our efforts here are focused on appeasing the car centrists. I want independent bike lanes away from heavy machinery and toxic exhaust chemicals. I want the cars we do have to use, relegated to roads where their bulk and fumes aren't affecting anyone. Picking a fight with anyone not towing the party line is stupid, and should be below this community.