I see your point, but it also cuts back on traffic congestion. They had a big protest in Australia (2006) about this. Without bikes lane splitting the back-ups were RIDICULOUS! I'm all for splitting like other countries and California when in stopped traffic. There is a low speed restriction when doing it to keep it safe and if you open a door to get out you are fully liable because it is up to you be make sure no bike is coming, just as you are to look both ways when crossing the street. One type of vehicle doesn't own the road, cars, trucks, tractors at times, bikes, etc...all use them. Respect each other and the other persons vehicles capabilities. If someone else can go ahead and you don't like it...then learn how to ride if it bothers you that much.