That's about as inaccurate as you could get.
I've lived in London for over 30 years and most of the biggest shitholes became gentrified to the point where they are now some of the most sort after places to live.
Why do people find it hard to understand though. The reasons migrants are let into most major European cities/countries in because the native population just won't do the shitty jobs for shitty pay and live in shitty homes. Without people doing those jobs most cities would grind to a halt.
Stupid fuck, U have illegal Paki invasion in the U.K.

, London was plan for 2,5 million of residents not for 9 mil., so don't BS !.
Who committed all those terrorists acts around England , bloody muslims , stupid snowflake !.
Oh, let me guess U hate BREXIT, Tommy Robinson,Football Lads & anything British , drop dead !.