The Appeal to Nature fallacy

[Wanted Man]

I have no idea where something like this belongs, so I apologise if this is in the wrong section. Anyway, no doubt many comrades are confronted with this argument when discussing communism, and especially younger, less experienced comrades often don't know how to combat it, which is why I'm posting this.

http://www.infidels.org/news/atheism/logic.html#natural