Social justice Christianity is directly opposed to "fundie" fascism. It emphasizes the dignity of each and every unique human being and the importance of the common good. It is closely allied to socialism and democracy, in that it stresses the need to work together to improve the lot of everyone, through growth of community and communication. It stresses tolerance, compassion, and cooperation.
Being a humanist and not affiliated with any one religion, I am nevertheless entirely comfortable with progressive Christian humanism and am surprised but pleased to find it in O'Malley. I believe that this is not a man who will sell out or betray those who support him. He will make mistakes, but he will do his best to make make things better rather than worse for the majority of his fellow Americans.
O'Malley is a complicated, but simple and decent man. He believes in universal human rights, including marriage equality and women's rights. He also believes in getting things done, using common sense and practical organization.
He is a pragmatist guided by universal human moral principles, shared by all religious or non-religious persons who strive to improve the lot of human beings and their children.
I am more impressed by him every day.