Earlier quoted context omitted.
Have you visited London recently? Particularly east. It's got the unfriendliness but also complete total breakdown of the social contract and social decency Music and video calls without headphones on all transport all the time. Shoes and socks off on train seats. Zombies barging into you constantly. Nobody letting people off the train. Throwing rubbish on the ground. Leaving it on trains and buses. Vaping on the tub…
I agree with the breakdown of the social contract in London, but not with the unfriendliness. I've lived in the UK for eight years and have travelled to many parts of England and Wales. I've never felt as unwelcome in London as I do almost every time I leave it. Constant suspicious looks, questions about who I am and what the purpose of me being there is, the occasional downright xenophobia. To give you a recent exam…
I'm treated with suspicion too. A lot of it is 'not from here [the village/town/county]' (and not sounding like you're from here) rather than 'not white' or 'not from the UK' so I can't hard agree it's strictly xenophobia/racism etc.
And your anecdote about that guy: exactly what I'm saying. Everyone out for themselves. Selfish. Unrelated to racism or xenophobia etc
But are you saying in London everyone falls over themselves to hold open doors, let you skip queues, always waits for people to get off the train first, nobody barges past anyone, every single shop worker says "hello good morning" "thank you" "have a great day"...? What acts of making you feel welcome exist in London that doesn't elsewhere in the country?
edit: And you started "I agree...but not with the unfriendliness" then ended with "London can be unfriendly" so I'm a bit confused :D