I agree with
@sammsky1 here. First, your post is a load of whataboutism. 'Everyone in the position of the British Empire was or would have been evil, so it doesn't matter.' Try that in a criminal defense court! 'It was just human nature, your honour!'
And this point about the benefits is extremely condescending. As if people in India, North America, and everywhere else would have remained in the Stone Age if it weren't for the colonists! Also, if advancing others (anyway a subjective point) had been the point, surely there is a way to have a positive influence without being extortionist, racist dictators.
Also, if
@sammsky1 has to explain why he thinks your post is bad, why can you call his OP drivel without providing arguments?
Despite my comments above, the tweet about Native Americans is indeed wrong - but you're both wrong about how. Read Charles Mann's
1491, which is an amazing overview of life and culture in the Americas before and around colonization. It is indeed likely that some 90% of Native Americans died due to colonization, and that may well have amounted to some 100 million people. (Estimates were long based on numbers of survivors, which were hence massive underestimates.) But the overwhelming majority of them died due to smallpox and similar lethal infectious diseases that the continent hadn't known before. That wasn't intentional by the colonists. Not that they're innocent in their behaviour though; their subsequent conquest, suppression, and other treatment of Native Americans is horrendous - but that's not the focus of the tweet.