The Indian who shamed Britain by calling out a massacre

In the name of the queen and the crown, Britishers were involed in so many thefts (cultural artifacts for example - Kohinoor diamond anyone?), rapes, atrocities, massacres, genocide and more - and still had the gall call others as evil!

They divided many nations arbitrarily, not just India - and partitions of India and middle east caused the death of hundreds of thousands of people and the displacement of millions of people. We talk about holocaust a lot. But what Britishers did is no less evil.

Why isn’t that nation and the queen / crown held responsible? Such a shame.