I strongly suggest, Toby, that if you're going to post on another football site ( I say, another, - I don't even know if you support a team) then it's best to avoid personal abuse.
I'll answer your question. I was last in London six weeks ago to see an ailing uncle and aunt who live in Kew. I have friends in Muswell Hill, Shepherd's Bush and Thornton Heath, though most of my friends have moved out – a cousin of mine moved from Stoke Newington having started a family and being concerned at the high crime rate. My friends' kids who grew up in Shepherd's Bush were constantly being robbed at knifepoint – and yes, there was an ethnic dimension to that.
I was born in London (Herne Hill), and worked there for twenty five years. It's particularly bad for crime now, especially knife crime, but, of course, there's rising criminality all over the country. I blame Khan for his steps in London to deter stop and search ( and many decent young men, mostly black, have suffered as a result), but mostly I blame the Tories and particularly Theresa May for cutting down police numbers and shutting police stations. When the Third World comes into a country in large numbers, more police are needed, not less.
That there is a link between rising crime and immigration is undeniable (have a look at Sweden). I posted a YouGov survey at #90569 that left Strolls dumbstruck. Feel free to comment on it. The Danish government also put out figures comparing crime rates to ethnic minorities. Parts of the right of centre media are now seeking the same information from the UK Department of Justice. That department is resisting – and there's the point. An increasing number of people in the UK are disillusioned with our political system because of a lack of honesty, particularly on an issue like immigration, and a constant shying away from difficult issues like white child abuse and gangs. It leads to cynicism, and then one of two things happen. Voters start moving away from the two main political parties out to the wings of the political spectrum – it's happening now, and hugely so in many European countries. Or, they stop voting altogether, which is highly likely to occur at the next UK GE. And low turnout equals damage to democracy.
So I strongly recommend you adopt a more sophisticated argument than – anyone who's concerned about mass immigration and its effects must hate foreigners and is a racist ****. It's much more nuanced than that.