I am surprised that he learn stuff by going to that museum. Surely someone who aspires to lead a country should know the history of that country. Slavery and racism is a massive part of that history.
Same for the holocaust museum.
I said before on previous threads why this all really bothers me. When I was young, I lived in Cyprus. A country that is still divided. There was an invasion by Turkish troops to protect the Turkish Cypriots. Villages were divided. We went on a school trip at the age of 10, just a few years post invasion and went to an abandoned village. We saw a mortar shell that had killed a child my age. Blown her head off.
Since then - I've been to Auschwitz. The Holocaust museum. Dachau. Prague. Krakow. All areas involved in the Holocaust and the effects of hate. I've done a lot of travelling and that's opened my eyes.
Hate kills. We are greater together than separate.