I living in a Republican part of the country, I think they believe power is its own morality.
A God that murders people because his feelings got hurt while demanding no one murder, a husband beats his wife and kids because he wasn't respected - these are valid in their moral framework, cruel asymmetrical power structures.
There is a dominant race, a dominant gender, and a dominant country in their view. Laws exist only to control the weak.
These people love Trump because he represents the slave owning, male-dominated, terrorist rebels that form the myth of who we are as a nation. His corruption and enrichment is why they love him.