The left can't tolerate morality in law because that would stop them from murdering innocent babies.
The extreme left can't tolerate law and it can't tolerate morality. Christian moralists at the extreme will make any claims they like and base them on esoteric Biblical references. Neither side is capable of governing a free republic which bases its law on the fundamental belief that personal convictions have greater weight than the state's expression of others' beliefs. Neither extreme deserves the trust and confidence of the people.