In the same interview he was asked if there was any purpose in humans. He said that of course there is purpose: to propagate our genes
That could hardly be called a "purpose."
Out of curiosity, what would you consider to be a proper purpose?
We have kids. We care for them and provide for them, which ensures the propagation of our genes. We support the family, even the extended family, with whom we share genes. We contribute to the community, which provides for our offspring which helps to ensure the propagation of our genes. We try to make the world a better place (at least within and for our own society), which helps to ensure the survival and prosperity of related descendents and hence to ensure the propagation of our genes.
How could that "hardly be called a 'purpose.'"?