Jim, you seem to be claiming that the British are deeply racist, but you have no idea how they compare to others.
As far as you know we could be the least racist people in the world.
I suspect we may indeed be among the least racist in the world.

Less racist than Ireland in view of their treatment of Travellers.
Less racist than France with its deportations of Roma and restrictions on Muslim dress.

So we are deeply racist, but everyone else is deeply, deeply, deeply, racist?