Earlier quoted context omitted.
I live in the Paris, France area, and I think most people here that are not themselves driving such things are hoping that motorized two wheel vehicle gets outlawed. I'm not sure why, but people driving those seem to completely ignore driving laws (red lights, stop sign, lanes, etc) which makes them very dangerous and annoying. Not to mention the noise (for those which are not electric)
In Austin, motorcycles generally follow the same rules as cars. The two wheeled vehicles that seem to annoy most people are bicycles and for the reasons you state (except noise).
The main differentiating factor is probably the consequences - or lack of.
Disobey traffic laws and get caught in a car or motorcycle - you face consequences that can range from harsh to at least significantly annoying enough that you'd rather not.
Do the same in a bike, and most people don't care beyond giving you the finger or a nasty look. Even cops don't care more often than not.
True - you don't have a cage of steel surrounding you like in a car so you also risk being killed or maimed, but I've found most cyclists also have a sense of invincibility until they actually get hurt. I am guilty of this myself.