Going to assume that you're one of those scary white men we should stay away from in London:
"According to the Metropolitan Police’s website, which gives up to date statistics on crime in each of London’s 32 boroughs, as of July 2016 only 3 boroughs had "high" or "above average" rates of crime – Westminster (high), Camden and Islington (both above average). Based on the most recent nationwide census of the UK, these three boroughs all have majority white populations, with black and Asian populations of between 7 and 15 percent. In fact, the areas that Air China’s advice appears to be specifically keen on warning visitors about – those with high black and Asian populations – are not particularly dangerous, according to official police data."