I'm Asian and I agree with your statement: It's not that they are "bad" drivers (NOT equating to being "bad" people), but just arrogant, insensitive and disrespectful drivers. 99.99999% of Asians (those who were born/grew up here or have a diversified ethnic social circle are NOT the same) are the most disrespectful drivers I have ever seen. I am not racist against my own people either. In fact, I am proud of my ethnicity and take pride in all other Asian qualities, especially in submissive respect for all the elders and academic excellence. But I, too, get frustrated with them every weekend I go grocery shopping in the Asian markets and driving around the streets there. I even purposely arrive at the grocery stores either a few minutes before they open the door or right when they open. These are my conclusions from close observations:
1. The middle-aged group, FAR from retirement age (anybody that old, we, the younger generation, take them everywhere as our expression of respect for our elders, so they are NOT "senior citizens"), insists on being the "careful driver" so they don't get speeding tickets or get into car accidents and jack up their insurance rates----believe me, I got plenty earful of lectures from my elders for driving "too fast" and not talking so much to them in the car----except they are soooo "careful" that they DON'T bother to watch the road (cars, honk at slow pedestrians, including kids and seniors, go waaay below the speed limits, run traffic lights, "skip" the stop signs, and so on).
2. Most of them are soooo rude because their social group only limits to other Asians----the more racial "diversified" Asians are NOT rude and disrespectful in manners toward others, in the stores or driving on the roads. I have been pushed out of the way----literally, with their designer brand handbags----in those stores just because my casual jeans and Ts don't measure up to the $1,000+ apparel.
3. For the younger ones, they LOVE status-consciousness----translation, show off their Lexus, BMW, Mercedez----so they purposely drive slow so the whole world can "see" their material success. As for watching the road and being respectful to other drivers, their thoughts are sooo stuck on themselves that they "forget" to signal and watch for other drivers/pedestrians.
4. It's this sense of status-consciousness that they think "entitles" them to be completely ego-centric on the road with excessive chatting while driving----either with other passengers or on their cell phones.
5. For the young rich ones, their reason is----and I quote----"I can afford it." Translation, if they wreck their cars, they will just go buy a new one. And if they cause the accident, they will just "buy a new car" for the victim. I have even witnessed a car accident in which this Taiwanese woman blatantly told the cop, "I don't have auto insurance because I don't need auto insurance. I am self-insured, and I will just replace their car with a brand new one." I never even knew there was such a thing as "self-insurance."
Therefore, no, it's not your imagination or a rumor that most (not all) of them are extremely rude, disrespectful, and racist (yes, even against other Asians). I have experienced, seen, and heard the stuff they say about their attitudes and "reasons" for their actions----driving or not driving----toward others. I extend the simple courtesy of holding the door for strangers at those markets and they would snap at me instead of saying "Thank you." I smile at them in greeting and they glare back at me with accusation as if I want to rob their expensive LV bags. This is the ONLY part that I am not proud of my people. Yes, there are other bad drivers out there as well, but not as arrogant and insensitive as most Asian drivers.