You Have Your Truth, I have Mine

Some people.. maintain that morality is not dependent on the society but rather the individual. “Morality is in the eye of the beholder.” They treat morality like taste or aesthetic judgments, person relative. 

On the basis of (moral) subjectivism Adolf Hitler and serial murderer Ted Bundy could be considered as a moral as Gandhi, as long as each lived by his own standards, whatever those might be. 

Although many students say they espouse subjectivism, there is evidence that it conflicts with other of their moral views. They typically condemn Hitler as an evil man for his genocidal policies. A contradiction seems to exist between subjectivism and the very concept of morality. 

Louis Pojman, Ethical Theory