When someone's in a car and they see someone else in a car blow through a red light, they say something along the lines of 'that person's an idiot'. When they someone on a bike do it, they say 'cyclists are idiots'.

If I count how many laws people in cars break when I drive home tonight - speeding, illegal parking, etc. - I'll run out of fingers and toes.

Ultimately the worst thing someone on a bike can do to me in a car is cause me a delay. The worst thing I can do to them is kill them. So I give them the benefit of the doubt.