
Why should American or Western laws or morality apply to a crime that occured overseas? If Pakistani or Iraqi law allows for the death penalty for mass murder, who is anyone to say that they’re not entitled to try and execute an American politician in accordance with their laws?
In fact, who are “we” even in this situation?
That’s not how jurisdiction or extradition works. Invoking the Universal Declaration of Human Rights to block the death penalty from being applied to the politicians of a State Member that allows and applies the death penalty domestically is also a hilarious thought, even if the UN had any way to intercede to stop the death penalty from being carried out (it does not).