Earlier quoted context omitted.
This is a sham comment and you are a liar. The idea that there is no British culture in Birmingham is bald-faced misrepresentation and you should be ashamed of it.
Meh. Birmingham is big I probably couldn't see more than 5% of it. And I agree there are "islands" of British culture left. But you have to specifically look for them. And I'm the kind of guy who visited a concert in the Symphony Hall almost every other week (even though I was probably the youngest person in the audience).
What British culture did you expect to find, beyond the concert hall? I assume there are pubs, sports teams, museums and so on.
In any case, the south Asian culture in Britain is also British culture. Example: Balti.