Background: 90 miles per week avg cycling--commuting, errands, recreation, randonneuring. < 20 miles per week avg driving.
Most points have been made, but my observations , more about people than bikes--
1) Attitudes--Good people care about others. The mode of transportation is a red herring. I hope I don't hit someone is a cop-out. Drive like your grandmother is in the backseat, and you're on your way to her best friend's funeral. You'll be safe, within the bounds of the law, and if it's your habit, won't be aggravated when you're stuck in car traffic, bike traffic, school bus traffic, or Farmer Brown on his red-belly Ford tractor hauling a hay wagon traffic. Why pick just one type of traffic to get mad about? Delay = delay, right? You're safe. Your passengers are safe. People around you are safe. And that's the most important factor. Anecdotes, statistics (real or imaginary), and persuasion won't change how you feel about the person in front of you when that person's decisions forces you to bend your will just a little. Road rage crosses all lines because it's not a vehicle problem. Believe me when I say that I've been frustrated when someone needed 15 extra seconds after the light change to get off Not-So-Instagram. Conversely, I understand that cyclists can and do similar things that frustrate drivers. Many of the things we do on the road are inconvenient to someone else in certain situations. Most are not dangerous in the least, whether driving or cycling. Bikes and cars aren't the ones who get mad, and we really don't care what vehicle is doing the toting. Let's not pretend otherwise.
2) Frustration in a group seems to be inversely proportional to one's likelihood to be in or be associated with a group. Cyclists who drive seem to be more conciliatory towards cyclists. Parents of school-age children are often more patient behind school buses and at crossings. Rural folks wave a "good day" to the farmer on the tractor as they pass. But isolate a person from a group, and emotions run high. The exception to that rule seems to be suburban/urban drivers. They're just in a darn hurry to get everywhere, no reason needed for all the rush. They drive a car, and they're still mad about all the cars. Why don't marketers show that reality in luxury car commercials?