My mom ped a while back and...?

Going through her things,we found a whole box of letters from P.....,the father of her 5 youngest children,who are now teenagers.We haven't seen them in like8-9 years.The last letter is 2 years old and it's in a foreign language,each of the kids wrote a few sentences,she translated them as best she could,and they were basically saying,"Keep running tramp,we KNOW you never wanted us,b****!Stay the h*** out of our lives and leave our daddy alone,he's a married man,you black Hussy!"Now,We know why,she got upset,whenever we mentioned them to her.Now,some of us are wanting to know.Why they hated her?Mommy always said they had been Brain washed,but from what they wrote I seriously doubt that.You can't be that hateful,unless you feel it.I found them online and I don't know what to say.