I could not have said it better myself. I detect a hint of Dawkins in there and perhaps some Hitchens and Harris as well
Also, putting forward the question "why are we here?" is flawed by it's very nature; what if there is no why? There is no reason to believe that we (as individuals and as a species) have a reason to exist at all, it may simply be the case that we do and nothing more. This does not make life or the universe any less marvelous or beautiful though.