It's not illegal, and it's not a safety issue. You are the one breaking the law.
You legally already have to go into oncoming traffic to pass them. Cyclists can take the lane on roads where drivers, such as yourself, tend to not give proper clearance when they are driving dangerously and illegally.
They can take the lane if the situation requires it. You've already stated the lanes are narrow, meaning they have a legal right do take the lane. Even if they can't legally take the lane, it would still be illegal to honk at them, since it's not an immediate safety issue.
If the roads are too narrow to ride on the right, then they can take the lane legally. Why does it matter if they're to the right anyway? You have to move into oncoming traffic to pass them legally anyway.
If you are on a sidewalk when using the bell and people jump, that is because people are not expecting bikes on a sidewalk. A shared-path is a different story.
Never cycle on the sidewalk. It's usually a shared space for bikes and pedestrians and some groups manage to block the whole lane walking side by side (5-6 people)
You realise that what you posted disagrees with that right? The legal text you posted stated they're only required to do that when the lane is wide enough to allow safe passing. You said yourself that the lanes are narrow... so I'm guessing you don't have the requisite 1.5 meters between them and the lane edge. Therefore, they're in the right by taking an appropriate (and safe) position in the lane.
Just stop honking at cyclists when they are doing nothing wrong. They know you are there and will pull over if they feel like they can safely.
You literally wanted them out of your way on those roads in particular. There's nothing to distinguish. As for having an agenda... possibly. I refuse to cycle on the roads in the UK because of people like you.
They are the ones riding and will usually know better when it is safe for them to get over, more than when a car behind them does. There is loads of shit on the side of roads (both wide and narrow) that I would not pull my bike over on.
And again, the cyclists that take the lane aren't breaking the law. Almost all roads in California are either 12 feet wide or narrower, which isn't enough space to legally share the lane, meaning cyclists can and should take the lane on pretty much any road. Otherwise you'd have to deal with lots of shitty drivers trying to pass without giving enough space.
I think the problem is that your way of notifying other road user is not appropriate. Even if someone breaks the law (taking the lane is not breaking the law), honking at them will not fix that, rather it might increase the risk of an accident. Seriously, there are gradients of how bad something is and it's usually not black and white and you should not decide who is in the wrong.
I would be interested in an example of what you think is wide enough road where the lane can be shared between cars and bikes side by side.
I totally get it, on the rare instances I have to use it I'll make sure nobody is on there and if there is I come to a full stop and let them pass. Last time I did that I was waiting for a little old lady to walk pass me an she did the jump scare thing. I was like wtf. At the same time I've seen asshole cyclists too. My cousin would make fun of me for stopping at red lights. All I could do was smh at him.
