You wouldn’t be surprised that I don’t see a supernatural basis for morality. You might be slightly more interested in a claim that our moral intuitions aren’t innate either. The key word is “innate”. I do indeed think that genetics plays a roll, as I believe they do in absolutely everything. However, the extreme differences we see in morality can only be explained in cultural terms, meaning that we have an ongoing battle to develop the best possible moral systems – and that some moralities are better than others.
You won’t be surprised at all that this video feeds directly into my view that cultural relativism is a horrible idea. Unfortunately, it’s an idea that comes from the part of the political spectrum that I most associate myself with – the left. Hopefully the difference between those of us on the left and those on the right is that we can be self-critical and self-improving.