People often forget that a lot of people in the UK disliked Churchill - my father was in the RAF during WW2 and he hated him. Churchill was removed from office by a general election right after the end of the war - though he was elected again a few years later.
Churchill’s ascendency to PM is an amazing story simply because everyone hated him so much. He had barely any support in parliament at the time, and even after taking over during the war he was still hated.
But had he not taken over it’s likely that most of the Europe would be speaking German today.