Prime Minister Sir Keir Starmer speaking to the media in Downing Street, London after he hosted a video conference call with international leaders to discuss support for Ukraine, in March. Starmer Sunday called a proposed migration policy "racist" and "immoral." Photo courtesy of Britain's Prime Minister Press Office/UPI | License Photo

Sept. 28 (UPI) -- Britain's Prime Minister Keir Starmer has called a policy that could lead to the indefinite deportation of thousands of people from the country "racist" and "immoral."

Currently, migrants can apply for indefinite leave from other countries for five years, and allow them to live, study and work in Britain permanently, according to the BBC.

But a plan by Reform UK would abolish the status quo and require migrants to apply for new visas with more stringent guidelines. Right now, indefinite leave gives people more rights and access to benefits

Starmer said he did not think supporters of Reform UK are racist, but said he remains "frustrated" following 14 years of "Tory failure." Starmer said he needed "space" to pursue and fulfill pledges he made during last year's general election, which the Labor party won with a large majority.