Harsh as it sounds, this Moslem tendency to close blood relationships is one of Britain's best lines of defence against the Moslem invasion, especially insofar as Brits don't have to take any direct action.
Naturally the Moslem knee-jerk mouthpiece instantly went into denial mode.
However, what's happening is really a form of God's mercy to this nation, like the way the common cold devastated the aliens in the screen version of War of the Worlds.
Back in the late 1960s, it was found that American blacks produced per capita 6 times as many feeble-minded adults as whites. In-breeding is a feature of black 'culture' too and race-mixing tends to sterility.
The main thing is to stop immigration. Then, even without enforced repatriation, the invaders will eventually inbreed themselves to extinction, or to such a state of enfeeblement that they will not be able to mount any effective resistance to the indigenous Caucasian population.