Meh, I'm a cyclist and a motorist.
Those people you describe are dickheads on bikes. Fortunately they haven't got a tonne of metal wrapped around them causing danger to other vulnerable road users due to their impatience and contempt toward any road user who choses to use an alternative form of transport to them.
Whilst your point is accurate, and I'm sure not intending to be victim blaming, I feel the most important people to educate here are the car drivers who pick up their license in their 17th year of life on this planet and drive around in their bubble with no experience of any other mode of transport! You can really tell when you are being overtaken by a motorist who rides bikes because they are patient and give you plenty of room.
Let's give a little for the cyclist who at the end of the day has committed the crime of riding on a well lit Cowley Road rather than adding to the congestion car drivers are happy to sit in so long as it's caused by other cars and not a cyclist delaying them for 10-15 seconds.