You should not take the content of your intuitive response as evidence until you have submitted your psychological reaction to what I call cognitive psychotherapy. You should do what you can to learn as much as possible about the origin of your reaction.

Global governance need not take a democratic form.

I have been brought up in a culture where capital punishment is indeed anathema. I have always thought of myself as a principled opponent to capital punishment. However, when thinking about how the topic is handled in other cultures, in particular the American, Russian and Chinese ones, I have realised that my own tack on the issue was utterly superficial.

Even where people in different cultures agree they may all have gone wrong.

Being a moral realist I see normative ethics as a search of the truth about our obligations and a search of explanation; the idea is that moral principles can help us to a moral explanation of our particular obligations.

Normative ethics, pursued as a free, systematic, and critical attempt to find moral truth, regardless of religious and other authorities, is a rather new adventure. Let's wait and see what will happen!

It is of note that for a long time moral nihilism was a kind of unquestioned default position in analytic moral philosophy.