The question is whether you derive your morality from a higher power or whether it is self-serving. There is no validity to morality constructed around justifying whatever you feel like doing. The worst people in the world, as designated by nearly everyone else, can construct a moral framework in which they are right. That doesn't help the rest of us.

I am not fond of (or at least used to be not fond of) the religious binary argument that everyone serves some master, wittingly or not -- typically God or himself. But leftist morality strikes me as derived from the self. Then tribalism decides which groups' so-constructed moralities are acceptable. Incidentally, these tribes seemed to be defined by religious conservatives. Each group that is condemned by religious conservatives is deemed a virtuous victim by the left.