Equality under the Law was a British Value until our legal system and political elites submitted to Political Islam.
Equality under the law has never been a “British value.”
Now... there have been dissidents demanding equality going all the way back to the Levellers, but it’s never been the mainstream British position.
The British system
rejects equality. Except for the Hindu caste system, it’s the most class-based system in the former British Empire. The institution of the monarchy stands in opposition to equality. So does the peerage system.
And speaking of the British Empire, the whole idea of empire is founded on the idea that the British (or, more specifically, the English) are superior to the “colonials.”
Britain does not have equality under the law and never has. Throughout history, when people - either oppressed Britons at the bottom of your class structure or other people’s being oppressed by the Briton’s - called for equality, they’ve been almost always suppressed brutally.