LONDON — The Council of Europe’s most senior human rights official warned European leaders not to create a “hierarchy of people” as they pursue reforms to migration policy.

Michael O’Flaherty, the Council of Europe’s commissioner for human rights, said “middle-of-the-road politicians” are playing into the hands of the populist right.

His comments, in an interview with the Guardian newspaper, come after 27 countries in the Council of Europe issued a statement Wednesday setting out how they want the European Convention on Human Rights to be applied by courts, including on familial ties and the risk of degrading treatment.

The nations hope to reach a political declaration in spring 2026.

O’Flaherty warned against any approach that would downgrade human rights, echoing calls he made in a speech to European ministers Wednesday morning.

“The idea that we would create or foster the impression of a hierarchy of people, some more deserving than others, is a very, very worrying one indeed,” he said.

He added: “For every inch yielded, there’s going to be another inch demanded,” telling the paper: “Where does it stop? For example, the focus right now is on migrants, in large part. But who is it going to be about next time around?”

He also hit out at the “lazy correlation” of migration and crime which he said “doesn’t correspond with reality.”

Prime Minister Keir Starmer and fellow center-left Danish Prime Minister Mette Frederiksen wrote in the Guardian Tuesday the best way of “fighting against the forces of hate and division” was showing “mainstream, progressive politics” could deal with the challenge.

Britain’s chief interior minister Shabana Mahmood has proposed tougher policies for irregular migrants including a 20 year wait for permanent settlement and assessing refugee status every 30 months.