Hey,
I know that Churchill liked Jinnah & called Gandhi a "native fakir". He was forced out of power because the electorate perceived that he lost the Empire. Even so, as an Indian, I'm glad that he contributed to delivering us from the "superior Aryans".
Churchill is not pure "white" but, he was not blacker than "black", as you postulate.
He was voted back in by the British because of a new set of enemies: the Soviets.
RE: Came back to the UK to find a white supremacist on the £5 notes...