According to holmes one problem with the diversity thesis is that

The Diversity Thesis is nothing more than the observation that not everybody agrees what the most important values are, or what obligations humans have to one another, or what actions are forbidden by moral law, etc. My guess is that holmes sees a problem with it because it does not make up for how culture can impact how someone views things

what's this it's not giving you what have to do.

answer; /// the above statement is (false);