What are the tricky things? On the death penalty in the US: I think it's financially disastrous in the US (executions are more expensive than life imprisonment)

What are the tricky things? On the death penalty in the US: I think it's financially disastrous in the US (executions are more expensive than life imprisonment) and makes it difficult to undo wrongful convictions in line with Blackstone's Ratio. But neither of those are particularly moral. I'd flip it around and ask how you bootstrap a moral system for all humans (or is it all life?) from scratch. It seems unlikely that I, of all cultures and times, am the pinnacle of morality in the same way that it would be unlikely that I just happened to be born into a family that practices the one correct religion in the world. Maybe you'd think that I'm inhumane or something, but my beliefs are largely the results of a lot of traveling and meeting the moral absolutists all over the world tell me with the same level of conviction what is right and wrong.