It is incredibly if they are going straight on the same road a car is turning right.
The Idaho Stop says they must yield, I’m not saying that a bike going 40kmph can safely run a stop sign. I specifically said “roll” a stop sign. And yeah, the data shows that it is safe (just not legal everywhere).
But to your point about car turning and bike going straight, this situation is actually dangerous whether the bike stops or rolls. The car needs to see the bike or the bike needs to wait in order to not be ran over. There are multiple intersections of this exact make on my daily commute. It’s always scary. Stopping or rolling doesn’t change if I’m seen though. I always have to wait to go until it’s safe. To be clear, rolling doesn’t mean not waiting for your turn at a 4 way stop or anything. It just means you don’t have to come to a complete stop.
not because it’s a worse road infraction but because the risk they are taking is orders of magnitude greater
You can read about the safety of Idaho Stops here: Understanding the Idaho Stop/Stop-as-Yield Law.
Cyclist on the other hand usually follow a hybrid pattern
This is totally true and definitely a safety concern. Driving (or biking) predictably is always safest. It’s something taught to motorcycles too. But yeah sometimes a bike has to move from the bike path into the road. It often happens at intersections and it’s not really possible to predict. Mind you, tons and tons of bike paths abruptly end, forcing this situation. I don’t really know what the solution is. I do think it’s an exaggeration to say that bikes regularly jump on or off the road though (not that you specified frequency).
The problem is that if you simply ask a question here, it immediately goes “car bad, bike good” and a conversation cannot take place
I still do not believe your question was a good faith one. Maybe it was, but you just refuse to accept any answers. Like I mentioned in other comments, I gave some answers and perspective, but the goal post has shifted. Feels to me more like you simply just wanted to complain about bikes on the road. As if there could be no reason for it when a bike path exists. Hoping you have time to watch the video I linked in another comment. Your opinions are not unique, but even though lots of drivers share them, doesn’t mean they carry much weight. But undoubtedly I could go on for hours on why cars are bad and bikes are good. That’s a joke, but it’s also not.
This is why I lose in Magic the Gathering so much. I’ll be like “wow what a combo, I could go on but this is mean enough.” And then two turns later I lose to a mean combo. I don’t think it’s actually mean, the goal is to win. I just think it can be more fun to not have huge plays, even if that results in more losses.