Well, Progressive Blacks do anyway. From the intro:
The National Black Church Initiative is a political umbrella for 34,000 African-American and Latino churches in 15 denominations representing 15.7 million Christians. Its policies are progressive. On Friday, though, it broke fellowship with the largely white Presbyterian Church USA, following the Presbyterians voting to accept gay marriage.
and from the press release:
In this case, PCUSA deliberately voted to change the Word of God and the interpretation of holy marriage between one man and one woman. This is why we must break fellowship with them and urge the entire Christendom to do so as well.
Update (20150517): from Bridget Johnson at PJ Media, more confirmation that “blacks” hate gays from Yahya Jammeh, president of Gambia:
If you do it I will slit your throat — if you are a man and want to marry another man in this country and we catch you, no one will ever set eyes on you again, and no white person can do anything about it.
OK, OK, I’m guessing that maybe Yahya Jammeh is not a Progressive/Leftist in the traditional Western style, although as a dictator, he certainly does have a headstart on becoming one.