Exactly the same appears to have been the case with the US 1965 Immigration Act. See Norbert Schlei -”Guilty of Malice Aforethought in America's Immigration Disaster?
Andrew Neather, whose urge to boast surfaced this confession in the charmingly titled article Don't listen to the whingers - London needs immigrants London Evening Standard 23.10.09 is, for the age of Google, very elusive to research.
Although the name might be thought to be English, it was virtually unknown in Ancestry.com's benchmark 1891 Census sweep - recently adopted perhaps?
But a familiar pattern emerges from the article (which is notable for the contempt it evinces for any British not living in London):
...I wrote the landmark speech given by then immigration minister Barbara Roche in September 2000, calling for a loosening of controls. It marked a major shift from the policy of previous governments: from 1971 onwards, only foreigners joining relatives already in the UK had been permitted to settle here.
...despite Roche's keenness to...be upfront, there was a reluctance elsewhere in government to discuss what increased immigration would mean...Roche was unusual in that she was a London MP, herself of east European Jewish stock.Well,well.