So you see you're a good and reasonable person which is where the disconnect is. Many drivers want to "own" the entire road. A concrete barrier completely blocks off the bike lane. Plastic and paint means a car can occupy that space when desired for parking, deliveries, etc. (cont)

"You own a car not the road"

Having a full barrier means that they can't do those things and also means that there is no forgiveness when they try. They dislike them because they damage their cars... When they try to use the space that is dedicated to cyclists