The left-leaning government of Prime Minister Keir Starmer is facing growing criticism for failing to take seriously a march attended by an estimated 70,000 people Sunday to protest growing antisemitism and violence against Jews.

The main surge in British antisemitism has its origins in pro-Palestinian activism that bleeds at times into support for the U.S.-designated terrorist movement Hamas, according to experts. Hamas invaded Israel on Oct. 7, 2023, and slaughtered roughly 1,200 people, including American and British citizens.

According to a survey commissioned by the U.K.-based Campaign Against Antisemitism on British adults’ attitudes towards Jews, “an astounding 21% of the British public affirmed four or more antisemitic statements, compared to 16% last year. In 2021, the figure was 11%.”

A far Left, Israel hating extremist is now the UK Home Secretary,” and linked to a video of Mahmood, participating in an anti-Israel protest.

Fox News Digital reached out numerous times to British Prime Minister Keir Starmer’s office for a comment. A spokeswoman said she would respond but had not answered by time of publication. Starmer has faced criticism from Israel’s government for his decision to recognize a Palestinan state. Israel views the move as a reward for Hamas’ massacre on Oct. 7.

The stakes are high for British Jews because the mass rallies against Israel in the country have frequently generated antisemitism.

Britain’s Prime Minister Keir Starmer speaks during a press conference, ahead of the publication of the government’s Immigration White Paper, in London, on May 12, 2025. (Ian Vogler, Pool Photo via AP)

The U.K. has also declined to outlaw — Iran’s Islamic Revolutionary Guard Corps, in contrast to the United States, Canada and Australia. According to a July British parliamentary report, Iran’s regime is seeking to kill and abduct. The clerical regime uses the IRGC for its terrorist and kidnapping operations abroad.

 The spokesperson for the Campaign Against Antisemitism warned, “British Jews are facing the worst antisemitism we have ever recorded. Our young people are being radicalized before our eyes and hatred is spreading unchecked. At such a perilous time, the Jewish community needed to hear clearly from the government that it stands with us. Instead, the Prime Minister’s absence has left British Jews questioning whether this government is serious about confronting the hatred consuming our country.”