I mean Stalin only sent millions of people to the gulag to work, not to die. Does that mean Stalin is also not a mass-murderer? Mao didn't necessarily want people to die during the Great Leap Forward and Cultural Revolution either but does anybody without CCP leanings actually believe that Mao was not a mass murderer?

And nobody actually calls them perpetrators of genocide. There is also a difference in that both Mao and Stalin did intentionally want people to die in the persecution of their political allies. Before you bring up Stalin+the massive death in Ukraine directly under his control, it was an entirely different situation where the peasants would not give their food so he sought to starve them out. Anyway, I'm not saying it wasn't a terrible thing, and they were responsible for the deaths of those Bengalis. it's still not a genocide.

India's Secretary of State, Leo Amery i.e. a very high ranking Conservative in the British government, didn't agree with Churchill's actions, repeatedly sought help in combating the famine and compared his racial views to Hitler at the height of WWII

Here is your citation for that exchange.. You'll note that it wasn't like they were dumping the food supplies elsewhere; they were diverting them to military forces and didn't give it to the colonized peoples that they dehumanized (which is absolutely deplorable, but really not the same thing as Hitler).

Again, I'm not going to sit and tell you Churchill was a completely wonderful man who loved India and this was completely by accident. He has a large role to blame. But comparing it to Hitler is just fear-mongering and using your emotions to divert from the facts. "Why don't we remember Churchill and not Hitler?" Because one picked out Jews from their homes and murdered them in specific camps, and the other was also a racist who's anger towards a group of people made him more unsympathetic to helping their plight in wartime. Both have the blood on their hands, but they are grossly different.