wtf, mate this has been a thing forever and u dont really need a source for that, only difference was that europe made the world their bitches and it was unprecedented to see these things at that big of a scale, I really feel bad for whoever brainwashed you into beliving these things but I am really just trying to watch some vct emea, have a good day and just remember that what europeans did is the same as everybody in this planet has done at some point and some of the ppl who suffered most are europeans themselves, europe is just a continent of war mongers, everybody was doing the same things and europe was just the one who won, colonialism would have happened either way and specially in a capitalist/industrial society