Even so, the comparison with Hitler and the Holocaust is a bit off, I think: the famine in India is not too similar to an industrialized extermination infrastructure, with concentration camps, gas chambers, bureaucratized selection and rail transfer, meticulous record keeping, etc. The uniqueness of the Holocaust is not just in that a lot of people died, but in how: via the application of modern infrastructure to produce a large-scale, industrial death machine.

One can still make unfavorable comparisons to other "evil" figures, where the analogy is imo closer. If indeed Churchill is responsible for an essentially deliberate famine, one could compare him to Stalin, and the probably-deliberate famine in the Ukraine. Or, if he's merely responsible for a large famine via negligence, one could compare him to Mao, and the probably-not-deliberate famine in China.