have a look at any Indian, Bangladeshi Asian restaurant, including Chinese, hardly a white face in sight, apart from the diners, have a look at butchers, many in the capital are Asian owned, only Asians work in them. Estate agents recently featured in the programme on racism against blacks were all Asian, perhaps they didn't get around to the white estate agents who knows, they don't want black people for the property owners, it should cause a stink as that is overt racism. some protests have been made. I also know of blacks who don't like, discriminate against asians, and white, they will not employ either.
Legislate all you like, but quite honestly you won't stamp it out. They will get round the laws somehow. I posted the links to gumtree over renting property, or at least one's room to only Muslim, or only Christian, some seemed to think it is wrong, some said why should it matter, but if you discriminate in this way, say like only Islamic schools, how do you get people to integrate more and we become a much more inclusive society, some don't want it, and that includes non whites