Why is it so hard for some people to graps the fact that Sally Hemings was Presidents Jeffersons concubine?

He freed her family and her fa,ily only, Their children and her brother but she wasnt free until he died, i think he wanted her to stay with him. SHe reccived an education in France niot to mention she was practically white with 1/4 black but they had the 1 drop rule. It was said she looked exaclty like his ex wife, she if theyre were rumors of their relationship what makes people think that they werent together. Im not saying that they were together in paris because its been "so called" proven that there relationship didnt start until they got back to monticillo years later. And DNA test PROVES that he fathered at least one of her sons Eston Hemings. But people are still in denial saying that we would need to dig up jerffersons grave to actually prove i lolo