Wow... Just wow..
"That's because they genuinly believe that they have more rights on the road then others" I'm a biker. And I don't believe I have any more rights to the road than others. In fact, I don't know a single person in my biking community that feels that they do. I am just like any other vehicle on the road -- albeit a vulnerable one, who has to contend with people texting, drunk drivers, distracted drivers, and those with road rage.
"And they today cause more accidents than most vehicles in the traffic" I hate to pull the "citation needed" thing for this, but if you honestly think this, I don't know what to say. According to the NTSB, accidents that involve at least one non-motorized vehicle account for less than 3% of all accidents reported. Now, sure there are a segment of accidents that are not reported, but a 97 - to - 3 is a stat that makes your "out of the butt" statistic unfounded.
"And all these statements about giving bikers more freedom in traffic, they're all coming from people who don't really drive, just ride bikes" I've had a license for 20 years now. I also drive on a regular basis, but I choose to commute via bike whenever I can. I do this for health reasons -- besides the exercise aspect, it also keeps my blood pressure down by being able to do my own thing and take in my surroundings. My choice is my own, and I don't think less of you for because you drive a car.
In the city where there is regular 4-way traffic at stop signs and traffic lights, it makes sense to follow the regular traffic patterns. Where the "Iowa Stop" makes most sense is in suburban areas and rural areas where there is little traffic. Most stop signs in a rural area don't have contention for traffic -- they are often put in place to slow down traffic to make people pay attention (think about it -- if there was a straight way through a neighborhood for 9 or 10 blocks, most people will cruise through at a speed much higher than the posted limit, and will pay less attention to their surroundings). Traffic lights in these less populated areas often will stop cross traffic for many minutes -- many times with no opposing traffic. Even worse, many traffic lights in the 90's were upgraded to be "smart lights" that sense when a car is stopped at the light. These don't trigger for light vehicles like bikes (and in some cases, even motorcycles). Bikers are forced to "break the law" when these lights don't change in a reasonable time. (I run across three of these lights on my normal commute to work).
The fact of the matter is that cars are not the only vehicles that have the right to use the road. Sure, there are some bikers that don't respect the rules of the road, but at the same time, there are just as many drivers that don't (speeding, texting, running lights, etc). We are all a part of the traffic pattern and are responsible for following the same rules. Those that don't should be punished.