[throwaway59553]

>In fact, some cultures were successful colonists.

And those cultures are very proud to have been more technological advanced than the colonized and had the vision to conquer and spread civilization. I'd google for "Black Legend" if I were you.

>I suspect they would suddenly decide to leave some practices in the past. That's very naive, you just have to look around a bit to see that many cultures don't really care if some people in other parts of the world find them outdated.

[okokwhatever]

This comment of you indicates a lack of knowledge on so many things and it predicates the marketing campaigns we've been suffering for centuries. It would be better to educate yourself about history and the relations between colonialist empires before trying to sound smart.