Yes, its my own rather limited special group rather than being universal.
So your special group looks down on all the other groups.
...While its true that given signficant poltical will it could be changed it migth not be true that majority of the relevant countriers think its okay/neutral to do. The political process involves compromises and this can be an accepted downside. Also inhibiting dispersion of political ideas either by limiting media or removing opposing political stances means the choice is not that cognitive. In a way by doing such things the
One could make a more compelling case for capital punishment. Beheadings in middle-eastern countries are looked down upon, assasinations being involved in Russian politics is often critizied and you can get executed for rather political actions in China.
By whom? Not by (the majority of) the Middle-Easterners, Russians, or Chinese.
However the face of the western world, US, has a death-row that is disproportionally black.
Disproportionate to what? Compared to the relevant crime statistics it's disproportionally white.
practically all Americans acknowledge that slavery was wrong.
Yes, this is a combination of reasons (3) and (4) from my list.
Edit: also in that example there are other highly plausible explanations for the difference in number of CEOs.
Everyone believes that. Of course, since the standard definition of [murder] is "the killing of another human being without justification or valid excuse" or "unlawful killing with malice aforethought", this is a somewhat tautological belief.