Stop arguing ethics . Ethics are subjectiveSo let ' s say I lived in a country where murder was legal . I murder people , and you can ' t argue what I ' m doing is wrong because ethics are subjective . You can ' t then accuse me of wrongdoing , when I certainly am doing something wrong . If ethics are subjective , no one could ever hold any meaningful discussions . You know what that means ? How did slavery go from being accepted as the norm in America , to being fought against ? If ethics were subjective , you wouldn ' t be able to hold any meaningful discussions , and hence no one would ever change their ethical stance . So how did America change it ' s stance on slavery , when according to you , there ' s no point arguing ethics ?