Do you think one of the problems with black people is we are too accepting of other people?

I mean, of course to be accepting is a good thing in general. But I've been watching two BBC shows, one called "Tribal Wives" - about white British women who travel the world and live with tribes, some of them in Africa, and another show from the BBC called "One of the Tribe" where a guy named Bruce Parry lives with tribes as well. In all of these shows where they go live with African people (black people), they are always greeted with open arms, they even go as far as to say the newcomers are one of them, even saying things like, While your here, we consider you like our son or daughter, and these are white people we are talking about. I think that is the one of the main reasons why the Egyptian empire fell, is because we as darker hue people are very open and honest, and accepting of all people. I mean I know its hard to go against our nature, but do you think being this way comes as great detriment to our people? I mean I don't want to be anything like white people and their way of thinking, but I do think there should be a gray area, and middle ground as to not ever be taken advantage of by people who don't have this peaceful nature.