I would guess that the British Army et al. killed at least as many people in India as were burned alive as part of funerary rites. How does one effectively compare those two actions? It's easy to take the coloniser perspective of "they were savages and we stopped them from doing X". But the colonised are telling their own stories "these savages came from across the sea and they committed the most horrible atrocities".
I'm not trying to defend burning people or eating people. But killing people to take their stuff and calling it civilisation is not better. It's certainly not civilised.