Yeah, most of our first presidents actually owned slaves. Jefferson seems to have sorta kinda opposed it, and Monroe established Liberia as a place to deport freed slaves to, but slavery was a major issue in every presidential election until Lincoln.
Trump is the one that believes that no Latino of Black judge can treat him fairly. Trump thrives on hatred. There is no reason why any Black person should support Trump. The GOP wants the poor to stay poor, and is all for most of the immense wealth of our country to be the hands of a smaller and smaller minority.