Would that be the prevailing culture which is Anglican or Catholic; royalist or republican; socialist or capitalist; rich or less wealthy; inner city or rural; Southern or Northern; those with an IQ of 125+ or those with an IQ of <90; those who support football or those who play polo; etc.?
It is a patent nonsense to suggest, as you do, that there is one prevailing culture in the UK into which others have to fit.
That's right. There are two cultures. The honest as the day is long white man who just want an honest day's pay for an honest day's teabreak so he can spend it dahn the pub and perhaps have a fight before being lovely to someone's mum, and the Bangladeshis who are all LUZZING nappies out of windows as I type.