How can James and Ruth relate to Judaism and Christianity

Certainly Ruth has issues with Judaism. She can't resign the past and her father with her faith. Ruth abdicates the faith in so much of its orthodox form largely because it reflects her father and his torment. Ruth seems set free by Christianity introduced by James's dad. He God becomes, "the color of water". There is no promised land or chosen people. In Christianity she finds acceptance for her bi-racial children and herself.