It seems unlikely that this pattern of homicides would be explain by differences in general government policies between the U.S. and UK, such as healthcare policies.
NYC is very safe for an American city, but London is not particularly unsafe for a UK one; its violent crime rate is about average for England as a whole.
You are right. Should not have relied on the most likely LLM-generated description attached to the data. I trusted it because I already had the wrong impression that it was less safe, but that was just because the raw number of crimes is high because it is very populated.
As a general rule of thumb, probably never trust anything an LLM says; they're bad at things.
(I'm particularly unsurprised that they'd get confused about _London_, because, well, what is a London anyway? https://en.wikipedia.org/wiki/Greater_London . Even _human_ writers sometimes get confused about stats for London.)
I’m sure you can a find a city or two where this is true, but the general trend in most places is slow reduction since a peak in, usually the 80s or 90s. It’s not well-understood _why_ this is.
Social media tends to make people _feel_ like there’s a lot of violent crime.
And from what I read, NYC is exceptionally safe for a US city, and London is exceptionally unsafe for a UK city.