I think you're on fairly complicated ground here, ethically speaking. This is not a question that ethicists have left unaddressed, and it requires a bit more th

I think you're on fairly complicated ground here, ethically speaking. This is not a question that ethicists have left unaddressed, and it requires a bit more thought than simply the "existence vs non-existence" dichotomy you've presented here. If you want to look into it further, I know Christine Korsgaard among others has discussed this exact question in her papers.