Division in UK probably worse now than in run-up to Brexit, says Jo Cox’s sister Kim Leadbeater | Jo Cox
Political division and hatred in the United Kingdom are likely worse today than during the 2016 Brexit referendum, according to Labour MP Kim Leadbeater. Marking the 10th anniversary of the murder of her sister, Jo Cox, Leadbeater stated that while public figures initially called for greater compassion following the 2016 tragedy, that commitment proved short-lived. She emphasized that those who fuel division represent a vocal minority, and that individuals in public life hold a responsibility to counter such narratives.
Jo Cox was 41 years old and had served as a Member of Parliament for just over a year when she was fatally attacked by a right-wing extremist on June 16, 2016, while preparing for a constituency surgery.
The Current State of Political Discourse
Leadbeater, who was elected to her sister’s former seat of Batley and Spen in 2021, argued that the country has failed to sustain the unity promised after the 2016 murder. She noted that while people often express anger over the state of the nation, they have a choice regarding how to channel that frustration. According to Leadbeater, the duty of the majority is to “drown out” extremist voices and focus on positive community stories rather than allowing division to define the national identity.
The recurring tension between political rhetoric and community stability suggests that the legacy of high-profile violence remains a central, unresolved factor in British public life. By linking the threat of extremism to issues like loneliness, Leadbeater’s perspective highlights how political violence is often viewed not as an isolated incident, but as a symptom of deeper societal fractures that require consistent, active mitigation by leaders.
The Responsibility of Public Figures
Prime Minister Keir Starmer echoed these concerns, stating that the values Cox lived by—specifically the belief that citizens have more in common than what divides them—are being tested once again. Starmer noted that honoring Cox’s memory requires standing firmly against hatred and choosing solidarity over division. Leadbeater added that because those in public office possess a platform, they bear a significant responsibility to use their voices to mitigate tensions rather than exacerbate them.
What May Happen Next
As the anniversary of Cox’s death approaches, it is possible that political leaders will intensify calls for a shift in national rhetoric to prevent further polarization. Given Leadbeater’s emphasis on the “intersection between extremism and loneliness,” future policy discussions could increasingly focus on community-building initiatives as a preventative measure against radicalization. Analysts might expect a continued effort by mainstream political figures to explicitly challenge extreme beliefs, as Leadbeater warned that failing to do so risks misrepresenting the nature of extremist violence.

Frequently Asked Questions
Who killed Jo Cox?
Jo Cox was murdered by Thomas Mair, a right-wing extremist, in June 2016.
Why did Kim Leadbeater decide to enter politics?
Leadbeater decided to stand for election to ensure that the community and the country were not defined by her sister’s murder.
What is the role of the Jo Cox Foundation?
The foundation, established in honor of the late MP, campaigns on issues including the tackling of loneliness.
How can citizens best contribute to reducing the political polarization currently present in their own communities?