The great number of 'cultures' on this planet provide for a wide variance of what is 'right and wrong' between them. To not be able to think of 2 cultures where a multitude of things are
right in one and
wrong in another is to not try very hard, or at all for that matter.
I do not believe as many lefties do that no cultures are higher than or better than others. I do not subscribe to the school of 'moral equivalency'. Clearly some cultures are superior to others.