A problem of perception. The African Americans I've drummed with, and who have been the Major players in the Washington, D.C., Baltimore, Philadelphia, New York, New Jersey, and countless other communities around the USA have been just that, Major Players of African drum music for many, many decades. Play it as best we can, whenever, wherever, however we can. That's been the spirit of drumming in the African American community that I know. My point being, whether or not I drum is not based upon how many white people come out to my 'Function' or not.
Natural things tend to happen in there own 'good' time.
The work of the drum happens 1 person at a time, and only 1 person at a time. If one is drumming for this purpose, and this purpose alone, then the racial composition of the drum gathering shouldn't matter. Community building happens 1 person at a time. It is a mental attitude that develops community, not numbers or the race composition of the people. For me personally, it was enough that you expressed a desire to have more people like me present, that would serve to move me to be sure I was present at your future drum activities.