As hilarious as this is, it's worth pointing out - again - that Portsoken is not exactly typical of the City. Let's play with census statistics.
In the City as a whole an absolutely insane 57.7% of the population are in managerial/professional occupations: the figure in Portsoken is a much more normal 27.3% (which is actually lower than the figure for London and slightly lower than the figure for England). The City of London is still rather white (78.5% in total, 57.5% 'White British'). Not so Portsoken (51.3%, 36.3%: lower figures than London as a whole). Last, and by no leans least, 66% of households in Portsoken live in socially rented properties.
So Portsoken is basically a continuation of Tower Hamlets (but without the Bangladeshis)?