Rubbish. Typical LibProg shopworn counterpointing.
There is no large-scale broadly-recognized religion on earth whose texts nor traditional teachings stipulate that it is a Sin to be Black.
There are, however, three (3) Abrahamic religions ( Judaism, Christianity and Islam) that hold that homosexuality is a Sin - an abomination before God, Man and Nature.
Unless the employer is a hyper-traditionalist Muslim that's not going to happen either.
As many as infringe upon genuinely held and commonly accepted religious perspectives on decency and sin and debauchery?