Listen, I understand the irritation that arises in the interactions between cyclists and cars. We (cyclists) have to obey the same rules as cars. We have a few others thrown in for good measure in many places -- things like, "If you're on a 2 lane road with no shoulder, you may use the whole lane or, if there is a shoulder get over there instead". That kind of locally legislated crap. Fun fact: once you have your license to drive, there is nothing to make you go back and educate yourself on the rules that cyclists have to follow in order to use the road as well. In addition, there's nothing requiring drivers to educate themselves as to the meaning of road markings. Ever seen or looked up what a sharrow means in your region? It may not be the same as for me so you can't take it for granted that if you come to my city, bikes will use it the way you expect.
To make matters worse, confirmation bias. You see the asshole cyclists because they are the ones who rush to the intersection, track stand for a second at the red light and then take off while you are stuck waiting for the light to change when there's no cross-traffic. Of course this pisses you off. They're also the ones you see blowing stop signs like they're not there. I hate it when I go through a roundabout the correct direction and nearly get clocked by a car who is turning the wrong way because it's easier than going full circle to make that turn as much as you hate nearly creaming a cyclist who ignores traffic control. That doesn't make us all bad people on either side and we need to remember that a majority of road users we don't remember because they're not the ones who gave us an adrenaline rush or caused our lives to flash before our eyes on the way to work.
As for the chips on the shoulder, I attribute it to us feeling vulnerable, fragile, and scared in the face of your 1 ton car, that 18 wheeler and the delivery van with no back windows. Y'all are terrifying but but them's the roads I have to use, bud.