Colonialism...Good or bad?

No, those guys are mistaken, I'd say. Colonialism was all about funneling wealth from one nation to another. Look what it did for India: that country went from an incredibly wealthy world power to a third world nation very quickly. The development that colonialism caused was solely for the benefit of the white folks. This is why the US and Canada are doing well while much of Africa is not; white folks actually moved here, but not many moved to Africa. We got more developed than a lot of that continent did. Even when colonialists tried to "help" natives, it was at best horribly misguided and at worst abusive (read about the boarding schools Native American children were forced into). The problems that many of these nations now have are due to colonialism, and adding more won't help. We need to _stop_ meddling and to learn to help these people on their terms, not ours.