A race equality group has complained to the Conservative Party after an MP said the UK was "thankfully a predominantly white, Christian country".
Ann Winterton was sacked as a shadow minister over a racist joke
The Cheshire Racial Equality Council said Ann Winterton's remarks were "highly offensive".
But a Tory spokeswoman said it had not yet received an official complaint.
The Congleton MP was sacked as shadow rural affairs minister in 2002 after making a racist joke during an after-dinner speech to a rugby club.
Mrs Winterton also had the party whip withdrawn in 2004 after making a joke about Chinese cockle pickers at a Whitehall dinner to improve Anglo-Danish relations.
Her latest remarks appeared in an article for the Congleton Guardian, in which she expressed sympathy for the families of the victims of the London bomb attacks in July.
In it, she wrote: "We live in times of tremendous change but the United Kingdom is still, thankfully, a predominantly white, Christian country.
"Some might say we are now simply paying the price for the so-called 'benefits' of the multi-cultural society we keep hearing about, the product of almost uncontrolled immigration and the abuse of asylum."
Chantelle Janes, director of Cheshire Racial Equality Council, said her comments "failed to recognise the contribution black and minority ethnic people have made to this country and its development".
Mrs Winterton's article also praised the work of the London emergency services on 7 July.
But Ms Janes said she had forgotten the contribution of ethnic minority ambulance staff.
She said: "A lot of people within those emergency services are from black and minority ethnic group.
"A lot of people on 7 July who lost people were from black and minority ethnic groups and she seems to forget that within her article."
Mrs Winterton and the Congleton Guardian were unavailable for comment.