I should note that it is obvious that much of what Trump does ends up having to do with money, and restrictions on his make even more money. Look to money and you can see why Trump behaves as he does.
The other reason Trump does certain things is just pure racism. He learned that from this father, Fred, who was arrested in New York for taking part in a KKK event and getting into a brawl with police officers. Daddy Fred learned how to hide his blatant racism after than. He taught Donnie the same.