The founder of Black Gospel Music is Thomas A. Dorsey, a blues musician who gave his life to Christ and dedicated his talent to the Black worship experience.  He wrote one of the most profound songs in the literature, "Precious Lord, Take My Hand" when his young wife and first baby died in childbirth.  The most legendary gospel singer, one who helped form the musical style and one who worked with Mr. Dorsey, was Mahalia Jackson, a heterosexual woman. 

While it's true that there are homosexuals in the choir, there are also many talented heterosexuals in the choir.  The bottom line is that most Black Protestant churches rely on the Bible for guidance.  The Bible condemns homosexuality.  Are the churches to go against God's word? 

I think that gays and lesbians can be married civilly in the government court, but not the Church.  The Church is God's house.  And He says that homosexuality is a sin.  Those churches that allow it, that's on them.  They will have to answer to God.  Those churches that don't allow it, they will have to answer to God.