Hell they even speak a different language, and the cheese is a bit different.
Come on. This is not hard. You've been asked repeatedly to substantiate the claim that Dutch cities are *relevantly* different. And this you have not done.
What might be fun for you is to look at photographs of Dutch streetscapes in the 1960's. You'll probably declare them perfect- and confuse them with the UK.
Much like I'm only arguing for London here, I'm also only using Amsterdam, because that's the city I have actual experience of cycling in.
If I compare my 12 mile commute in to Greenwich, not even the middle of London, I do around 7 miles of that in a properly urban environment. Last time I was commuting in to Amsterdam I was doing it from Zaandam, it was around 8 miles of commute and maybe 3 miles of that in a properly urban environment, although where my London commute takes me nowhere near the centre my Amsterdam commute took me within spitting distance of it.
What I found in Amsterdam was that there was a reason everyone rode knackered bikes (our current family expression for a buckled wheel is 'that looks a bit Dutch') and that was thanks to a sufficient number of the segregated paths not being in great condition. There's a lot of blockwork used out near the edges which suffers from the normal issues of paving stones on sand. There were the odd patches of broken glass which didn't get dealt with day on day and didn't get swept away by bigger road traffic, there were the normal roots under tarmac and bits just missing completely. The Dutch have a weird 2 seater motorised car thing that is allowed to use the cycle paths, it completely fills the larger lanes and travels at the best part of 30mph, they are somewhat terrifying, especially after dark. Also the mopeds use the cycle lanes, they aren't much better, but they are better. So the actual safety on the cycle lanes is better than sharing it with HGV's, but hardly what I'd call complete.
Yes, there were a lot of people cycling, I saw a lot more than I would have done on my commute in to Greenwich each day, even out around Zaandam. They were all on crap bikes because bike theft is so high (the Dutch we were with said that you don't so much own a bike, as use it while you happen to be in possession of it. We carried a large number of locks because our friends had basically told us not to bring our bikes at all. Also there are bikes locked up all over the place, again some locals 'own' 2 or 3 and can't necessarily remember where they've left them all.)
Ignoring the riding on the wrong side of the road thing, riding in Amsterdam didn't feel like riding in London, the closest I could suggest would be like riding down the Cable St bits of CS2 when they are at their busiest, but really it wasn't close. While some of the freedoms were nice, legal salmoning for instance, the actual experience while in the city wasn't that great, and not something I'd want to deal with every day. As I've mentioned before, even riding at odd times of the day our average speeds weren't that high because of the nature of the cycle paths. As a pedestrian it was significantly more terrifying than being in London, again this could be down to familiarity, especially when playing Frogger trying to get from one pavement to the other (with a cycle lane, then a car lane, then a pair of tram lanes, then a car lane, then a cycle lane). I don't know how significantly the roads have been mucked about, I'd guess the more major roads in London are similarly wide to the ones I've just described in Amsterdam, but they are running multiple lanes for cars at the moment. The cycle provision was taking space from a wide pedestrian pavement with the kerb segregating from a fairly narrow car carriageway. Without the mopeds being able to use the cycle lane I'm not sure you wouldn't just be moving the accident statistics from cycles to powered two wheelers.
Out in the countryside, I'm sure things are different, although the cycle lanes still never look as clear of debris and as well maintained as the roads and where there's no cycle provision you can even use the roads, which is nice. But I'm never sold when people just say 'like the Dutch' as a description of cycling nirvana. I'm really happy with where the bicycle sits in the Dutch consciousness but I'd like to think there are other ways to get it there and we'd be better off using one of those.
Oh, I know this is all anecdotal and really you want some statistics from a report somewhere, but it's all I have.