There is no way to differentiate since the end results are the same.
No, they really aren't. Well, even a completely sign-less intersection should have people 'assume' yield signs, but you should never just blow through an intersection.
As for signalling, well, last night I had a bit of an issue with people in cars not signalling, so it's definitely not restricted to bicycle riders.
Oh, please. You can't imagine how a bicyclist who runs down a pedestrian could do significant physical harm to them? A twenty MPH piece of steel/carbon fiber/whatever with an attached human mass would just what, bounce off a pedestrian?
Sure, it could cause injury. But a car causes death at the same speeds, having orders of magnitude more mass. Personally, I just go for real-world statistics. The number of pedestrians injured in bicycle accidents are insignificant compared to the number and magnitude of car strikes.
You keep ignoring the fact that vehicle law is not created just to protect the automobile driver from death by bike accident. It's there to protect YOU, too. And the pedestrians who you are a serious threat to.
Actually, you're simply assuming that, I suggest you stop with that assumption. Also, talk about blowing it out of proportion. I'd be insane to assume that. Yes - vehicle laws are made, for the most part, to try to keep everybody safe. What you're ignoring is that the law can always be adjusted to increase safety, efficiency, or whatever. So I'm free to talk about a hypothetical law that allows bicyclists to treat a stop sign as a yield sign.
Also, 'almost ran over' isn't 'run over'. I'm starting to wonder if you have an excessively wide definition of 'almost' given how often you use it.
You question the fact that when vehicle laws are obeyed the people involved are safer?
No, I question the effectiveness of a law that nobody obeys. Whether following it or not would be safer is irrelevant when it's not obeyed by default. That's where you have to go back and assess what the law was trying to do, consider human nature, and try something different.
Other than that, it seems you're determined to read everything I write in the stupidest way possible. When I talk about cops 'enforce not being stupid', that roughly meant 'hand out tickets for particularly stupid/dangerous acts(that are also illegal for good reason)'. That means handing out tickets for violating the stop sign, but concentrating on those that violate the stop sign in a dangerous manner. By doing so you avoid pissing off the community too much.
So I suggest going back, rolling back your conclusions that lead to anger and such, reread my posts in a reasonable light, then come back.
You can stop arguing that the existing laws shouldn't apply to them. That's a start. I remember the idiots because they are both so common and do memorably stupid things.
Such as this. I proposed a change to the law, not that existing law shouldn't apply. For that matter, I even explained why the change would be irrelevant to the idiots, because they'd still be violating even my proposed changed law. It's all a balancing act anyways. Hell, maybe the law change combined with a media campaign advertising it would catch a the attentions of a few of them and get them to change their behavior.