Some good points but I'm going to throw in a BUT
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you see car drivers from a cyclists perspective, you will notice car drivers being assholes to cyclists as you are one yourself and have likely had some run in's with car drivers on your travels, so are probably somewhat biased in that sense as I am towards dick head cyclists....
I will say it is a popular method of travel especially around cities and built up areas as it can be an efficient way of getting to and from places compared to cars, buses etc because of the number of vehicles on the roads... but how many people on bikes take proficiency tests nowadays? car drivers usually have to learn for around 40 hours with a test afterwards (granted you don't really know how to drive until you have passed and are driving about on the roads on your own! ) but just in the last 2 days I have seen one cyclist on the road (so he should be observing the laws of the road while using it just as everyone else in their car/van/bus etc should be) completely ignoring a red traffic light and not slowing down, going straight through it and turning left when he should have done as I did and stopped. I seen another who was obviously not very confident cycling on the road and was cycling along the left hand side of the road until about 30ft before a right turn and then decided to stick her right arm out to indicate turning right without moving towards the right hand side of the lane and subsequently got a little bit nervous and decided to cancel her right turn and pull up on the pavement to compose herself. Don't even get me started on motorbikers, some of them take risks and ignore road laws, speed limits and general road etiquette on a regular basis.... I see this day in and day out as a car driver, I'm not heavy footed, not an aggressive driver and respect everyone I come across on the roads regardless of what method of travel they are using but seriously some car drivers, cyclists and bikers should not be allowed on the roads, unless you believe in natural selection.