Smokey,
I think we all just need to try to interest whomever we can. My niece's "live in" is black and grew up in the twin cities in a family that does not hunt. He does like to shoot modern guns and last we saw each other a few weeks ago at my daughter's place he expressed interest in hunting (bowhunting in particular). We talked for a long time and made a trip over to my house where he handled my bows and muzzleloaders. We had to get back, so I just told him to call me anytime he was ready and we'd shoot bows and muzzleloaders. If he calls, I'll follow through and show him what he needs to do. If not...well I'm not forcing it...he will have to want to put forth the effort.
This is how I approach anyone that expresses an interest in hunting or shooting traditional weapons. At the range, I've had whites, Hmong, one black guy, young people, old people, men and women shoot my flintlocks. If they are there and express an interest in what I'm shooting, I always offer to let them shoot. As an individual, I figure that's about the best I can do. If there are large clubs near metro areas, they could certainly have an event for people that have never done it before, but I don't think they would want to single out any particular section of the population.
Do any of the National Groups, like the NRA or NMLRA have any campaigns targeted at other than the younger population or women? Those are the two groups I usually see targeted to bring into the shooting sports.