For some, the word might be an aspirational statement. After all, it takes all types. I think we should be non-judgemental about other people's kinks. 

As an insult, it's not very effective if  the insulting part is supposed to be that it's a man *with a particular shade of skin* having a go at your spouse ... the part where he's having a go at your wife, that's not so problematic? 

Welcome to the new National Socialism ... put your keys in the bowl.