Churchill was desperately trying to defend the British India from invasion by the Japanese through Burma.
How would a famine in Bengal help to do that?
If you look at the wiki pages on the Bengal famine, you can see there were many factors the contributed to the famine. It was historically vulnerable and the war and arrival of refugees pushed it over the edge.
Sure Churchill detested the likes of Gandhi and the other leaders of Indian Independence, why wouldn’t he? They were political adversaries and they were trying to force the British out of India with strikes and riots at time when the war with Japan was going badly. They were the enemy within, a fifth column, some of whom solicited support from the Japanese and the Nazis.
Churchill was an Imperialist, for sure. That was the prevailing political structure of his time and they maintained power by being a separate ruling class. Social attitudes that, by todays standards, would be considered racist. For that matter, I am sure they had a pretty poor record on LGBT issues as well.
Making a moral issue focussing on Churchills character based on a modern standards rather than those of the time. What is the point of that?
The Bengal famine was just one of the many disasters over which Churchill presided. He had a long and very eventful career. While he can be condemned for a number of great fuck ups, he did inspire the country to fight on when it faced invasion by the Nazis and for that he is well regarded.
He also fought to defend India from invasion by the Japanese and for that he gets no thanks whatsoever. Sure his motives were to preserve India, the most precious part of the British Empire, but consider how India would have fared being part of the Japanese co-prosperity sphere? That would have been a brutal experience.
I am guessing that these old arguments a symptom of the political debate in India that is turning towards Nationalism which feeds on a perception of historic injustice. In that context attacking the legacy of British rule and characters like Churchill is, I guess, fair game because it has little consequence, the British are long gone.
Much more interesting is questioning the Mughal heritage of India by Hindu nationalists.