I’ve seen this in some cities too, but me this just says that those cities have such a lack of cycling infrastructure that only reckless people are willing to ride bikes.
I don’t think there’s anything particular about e-bikes that attracts reckless people compared to trucks or motorcycles.
There is plenty of data on this topic and it all shows that people riding bikes break rules at the same or lower rate than people driving cars. And unlike cars, they aren't one of the leading causes of death in the US.
I break the law on my bike a lot more than my car, but I don't ride an ebike on the sidewalk where pedestrians are. That's what I'm talking about.
I run stop signs on my bike all the time (like at 4 way stops) - I don't think this is very dangerous if you do it properly. Obviously I slow down to like a few MPH and can stop quickly if I see a car/someone crossing the street/whatever.
I've noticed that rider behavior has gradually improved. Beginners tend to bring their car driving habits with them, such as "when in doubt, accelerate." And it takes time to master starting and stopping, especially on a heavy bike that's a bit ungainly at low speeds. They also figure out what speed is appropriate for their bike handling skills, which is often not the top speed of the bike.
There are a few people who ride balls out, but tend to be in control of their bikes.
