So I take it from your statement that you say moral standards are conventional. Then I will ask you if there is absolute moral evil in the world? Please explain your position.
I do not believe in absolute moral evil. Christian dualism is somewhat problematic, imho, because it makes Satan an "absolute," and therefore somewhat of a god, because only deity is believed absolute.
That's why pseudo-hyper-objectivists
erratically on odd numbered days stuff food in the opposite orifice and heave out the top one.
and on even numbered days play Russian Roulette with their sons and on odd numbered days play it with their daughters.
and on odd numbered days greet their bosses and supervisors by slapping their bosses in the face and kicking their supervisors in the groin.
And particularly on weekends, they enjoy driving on the opposite sides of the road in the wrong direction above the speed limit.
And annually, at Christmas, in a unique demonstration of seasonal festivities, burn their own houses to the ground to their own wild maniacal cheering.
And on even numbered days haphazardly alternated with odd numbered days, they walk backwards with blind folds on--particularly beside busy streets and thoroughfares.
All in the name of OBJECTIVITY, FREEDOM, LIBERTY AND LACK OF flawed, human bias polluted CONVENTION, of course.