Funny that you take London as an example of Western Europe's low-trust environment, entirely ignoring the fact that the population of London can hardly be called Western European anymore. According to [1] in 2021 only 36,8% of the London population was White British, trend decreasing.
> But business wise, western Europe is still relatively high trust.
Maybe because the population actually working and doing business is still Western European? But that won't last long if current trends and policies continue.
If you want to make that argument, you'd at least need to look at the proportion of the population that's Western European, not just British.
The page I linked shows 53,8% white in 2021. Even if you count the majority of whites as West Europeans (and not East Europeans), they were under 50% in 2021, probably even less today.
If you have more accurate and up to date data, please share.
But that misses the point. I don't say London is not high-trust because of the non-Western population. I say London is not a western city anymore because of its population.
London has been a city of traders and other foreigners since at least the days of the Romans.
When a population immigrates, they change the social structure of the land they immigrate to to be similar to the culture they came from. This is why London, New York, and other cities are becoming exactly the types of places that the Welcome Refugees people thought they were saving people from. Turns out that places aren't rotten, the people populating them are.