These are the same guys who complain if you post a black chick in the men's locker room.
A bi-racial bm with a ww is seen as ir, but a bi-racial bm with a bw is not.
A bi-racial bw with a wm is seen as ir, but a bi-racial bw with a bm is not. For example, Halle Berry's first marriages weren't considered ir by the general public but when she married a white guy it was.
Here are some examples of how guys react if you post a bm with a non-full white women in this sub-forum:
http://www.whitewomenblackmen.com/forum/showthread.php?t=22476
http://www.whitewomenblackmen.com/forum/showthread.php?t=22050
There are other examples but I don't have the time to look through this archive right now