The ones I've met have been very interesting people. They've got different conditioning and responses than American blacks. The ones I've known have been very upwardly mobile people who seemed to be taking full advantage of the freedoms in this country that many American blacks seem oblivious to.
For instance, the last African guy I worked for (maybe a couple years back), lived with his wife and one small child in a huge home in a very upscale neighborhood. This couple had great material wealth, with a cultural orientation to match. In speaking with them, it was apparent that they were highly educated, and focused on their personal path in life. The guy owned some sort of business that was obviously doing gangbusters. He was taking business calls the whole time I was working there.
There wasn't an ounce of shuck and jive in that guy. He was friendly, but all business. That's the sort of dynamic individual who can make a real difference in the black community today. That's if they want to. I haven't seen that they feel any special attachment to the black American community.
It would take a heartfelt Christian faith to get the connection going. If these people could see that they would be the most likely missionaries, they’d likely want to undertake it. I could well believe there would not be a secular sense of brotherhood. It would be like trying to get oil and water to mix.