No one has answered the OPs question. My interpretation of why they haven't is that it is an uncomfortable question for the trumpies on this site. They have a feeling he is, and they know that racism is unGodly. So, if the trumpies say he is, they are saying in a roundabout way that they are ok with an openly (and proudly????) racist POTUS.
We have to take the good with the bad in a POTUS, just like we do in all of our human relationships. And, personally, I think more of us are more racist than we are willing to admit.
I am not a trumpie and I think he is quite racist. Higher on the racist scale than I am. (I think we are all racist to some degree - 1% to 100%.)