There have been thousands of white missionaires in Africa. They have been coming to Africa since the early days of the Trans-Atlantic Slave trade. Their mission is to spread Chrisitianity to the African heathen, little did they know that Christianity already existed in Africa (it was practiced in places like Axum over a thousand years before the coming of Europeans) Many of these missionaires have professed a "love" for Africa and its peoples. However, historically missionaires have served two purposes. The obvious purpose of spreading the gospel, and the less obvious purposes of feeding information about Africa back to their European homelands. It was through missionaires that Europe learned much of the information they used to conquer Africa. Also missionaires have committed some horrible sexual abuses against Africans. Not to say all of them have been bad, but they have done as much harm as good on the motherland. In either case, most missionaries eventually return to their homelands (as did the woman in the article you posted). As a result I would call them more guest (in some cases unwelcomed guest), than citizens.