The claim stated fairly

The claim is that white British people today are the beneficiaries of wealth that was built on the labour of enslaved Africans. The argument runs as follows: the Atlantic slave trade generated enormous profits for British merchants, plantation owners, and investors. Those profits flowed into British banks, industries, and estates. They were inherited by subsequent generations and form part of the accumulated wealth that white British families hold today. Because that wealth was built on exploitation, it carries a moral debt. Paying reparations would be a partial repayment of that debt.

In its stronger form, the argument draws on the work of historians including Eric Williams, whose 1944 book Capitalism and Slavery argued that slave trade profits helped finance the Industrial Revolution. The CARICOM Reparations Commission has built much of its case on this foundation, arguing that the prosperity of former colonial powers is traceable in significant part to the unpaid labour of enslaved people. The 1833 compensation payment, which paid slaveholders rather than the enslaved, is cited as evidence that the state itself recognised and protected the property value of slavery.

The claim has genuine academic underpinning. The University College London Legacies of British Slave-ownership project documented specific links between compensation recipients and subsequent investment in industry, property, and politics. Some of those recipients’ descendants are identifiable and prominent. The argument is not invented. It is the conclusions drawn from it that the evidence does not support.