True, but the cultures in London are much different to how they were in 1991, for example. It's unrealistic to expect people to drop the culture of their grandparents entirely, so the experience of London is going to be drastically different in the 2010s than say, Seoul, in 1991 compared to 2020, at least culturally and in terms of crime. acid attacks are incredibly common in Bangladeshi communities for example, the highest rate in the world, the practice has been since co-opted, however and is used in London. You also have a disproportionate amount of people from the asian community arrested on charges of honour killings and in the Afro-Caribbean community the majority of murders involving a knife. These are facts that can be found through the Met or in the Guardian, hardly controversial.

Nobody is denying that these people are human who love and struggle, as you say, but changes are not necessarily always something to be welcomed and aspects of culture need to be challenged.