Yeah, but The Netherlands isn't Cambridge, UK.
For one, The Netherlands has great cycling infrastructure, at least places where I've been: Cambridge, UK doesn't.
Again, from what I've seen, cyclists in The Netherlands tend to behave quite a bit better than they do here in the UK (drivers too, for that matter).
Moreover, what condition is the infrastructure in? I don't know about The Netherlands but I can tell you that in Cambridge, UK, it's littered with potholes, and often to some extent multi-modal.
You can't just forklift an insight about cycling in The Netherlands and expect things to work the same somewhere else without making a whole load of stuff happen beyond just encouraging lots more people to cycle if you want to actually make it safer. In Cambridge, UK, we need both solid investment and cultural change (both cyclists and, yes, motorists too) for cycling to become a safer option.
Am I being clear enough for you now?