Everyone against increased road safety features (like separated bike lanes) should have to do what I did on Sunday night:

Sit in an ER for hours next to a scooter rider in severe pain because they were run into by a car hard enough to flip them onto the hood of the car, as the doctor explained that they really needed to wear this neck brace despite the pain it caused because he was afraid that they might become paralyzed otherwise.

Might change some minds.