Does Atheism Lead to Nihilism?

[Esquilax]

Fetuses, which biologically is objectively human, also have the potential to eventually become self-aware thinking beings. Do we have any moral obligations to them?

What, do you think I've never come across this little pro-forced birth trap before? Infants have a consciousness, they do think, even if it's not particularly complex thought. Fetuses do not have that, and their potential doesn't enter into it; if we're just going to speculate about the future then there's plenty of ridiculous places I could take that.

The issue is consciousness and thought: not the potential for thought, not biology, just those two things. Self aware beings are the only things capable of being moral actors, therefore morality requires their existence, and must focus on their well being. Otherwise, there isn't any point to morality.