@caekislove it is already a hard sell for many men to consider dating a single mom. No men prefer that, but some accept it if they have no better options. But her having a mixed race child makes it a far harder sell, as everyone in the world will know that the man is not the father of the child. No man wants to broadcast to the world that he is a cuck, so it is no shock that this becomes a deal breaker.
Though frankly, her being a single mom in general should be the dealbreaker.