The Metaphysics of Naturalism

[This is a guest article posted for purposes of constructive discussion between a "naturalist" philosopher and Catholic philosophers. For myself, there isn't much in its content that I can object to, even as an opponent of metaphysical naturalism. Perhaps that means I've misunderstood David. If so, that question would be a good way to start [...]

Proposition…

Or should I say meme?
Proposition: “A meme is just a fancy-schmancy, neo-Darwinian word for ‘idea’. Get over it. The concept of a ‘meme’ adds nothing, save for scientistic obscurantism, to the idea of culture, ideology, psychology, sociology, religion, belief, and cognition, as traditionally understood.”
Responsae?