I don't actually live in London (there's no way I could afford to), I remote work in the midlands and get the train in to London every couple of weeks. But I do agree that everyone living in London and San Fran for decent wages is part of the problem. It essentially makes those places unaffordable to people who've lived their all their lives, and actually doesn't even make that much sense for tech workers for example, who could work remotely and live anywhere anyway