i think that your statement that black guys do appear extra aggressive/dominant when they think a woman is cheating on their husbands and I for sure that many feel they should "ruin" her for her husband
in 30 yrs we have experienced that for sure it is without any doubt many love the idea of "knocking her up" again to cuckold the husband and to inseminate her with mixed race baby has to be the most humiliating for any husband, I speak with some experience on this and know exactly what it felt like, whilst in those days I didn't even know what a "cuckold" was I did have extreme humiliation ( if it was possible now at her age (56) I would feel completely different and love it to happen again)
even fuckin 19 year old black football high school jock tried to do it